CVE-2026-90885 (GCVE-0-2026-90885)

Vulnerability from cvelistv5 – Published: 2026-10-26 14:47 – Updated: 2026-10-26 15:35
VLAI
Title
Apache Camel: Camel-Saxon XML External Entity Processing - XQueryBuilder Parsed a Message Body That Was Already a javax.xml.transform.Source With Saxon's Default Parser Settings, so an External Entity Declared in That Body Was Resolved
Summary
Improper Restriction of XML External Entity Reference vulnerability in Apache Camel Saxon component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.2. XQueryBuilder in camel-saxon, which evaluates expressions for the xquery language and the xquery component, built its default Saxon Configuration with parse options that set only a whitespace stripping rule, leaving the XML parser at its defaults, under which a DOCTYPE declaration is accepted and external entities are resolved. A message body of type String or byte[], or any body read as an InputStream, is first turned into a javax.xml.transform.Source by Camel's own XML type converters, which configure the parser against external entities, so those bodies were not affected. A body that was already a Source, however, was handed to Saxon unchanged, and when that Source still had to be parsed, as a stream-based Source does, Saxon parsed it with that Configuration, bypassing the protection applied to the other body types. Such a body arises, for example, after a route converts the message with convertBodyTo(Source.class), or when a component or processor earlier in the route sets the body to a stream-based Source. A DOCTYPE with an external subset, or an external entity, declared in that body was therefore resolved and expanded into the document the expression was evaluated against. An external sender whose XML reaches an XQuery expression or an xquery endpoint in that form could read files readable by the Camel process and cause the process to issue requests to hosts the document names. No non-default option is required, since the default Configuration is used whenever the route does not supply one of its own. Users are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.5. The 4.14.x releases stream and earlier, as well as the 4.15.x to 4.17.x and 4.19.x to 4.21.x release lines, reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release. For deployments that cannot upgrade immediately, do not evaluate XQuery over a message body that is already a javax.xml.transform.Source when that body carries XML from an untrusted sender, or set the configuration option of the xquery endpoint or language to a Saxon Configuration whose parse options refuse a DOCTYPE declaration and disable external entities and external DTD loading, which is what the fixed releases now apply by default.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-26 15:29 UTC
CWE
  • CWE-611 - Improper Restriction of XML External Entity Reference
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 1085 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Camel Affected: 4.0.0 , < 4.18.5 (maven)
Affected: 4.19.0 , < 4.22.2 (maven)
guessed Create a notification for this product.
Credits
Leon Zlobecki Andrea Cosentino
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-90885",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-26T15:29:02.992870Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-26T15:35:49.414Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.camel:camel-saxon",
          "packageURL": "pkg:maven/org.apache.camel/camel-saxon",
          "product": "Apache Camel",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "4.18.5",
              "status": "affected",
              "version": "4.0.0",
              "versionType": "maven"
            },
            {
              "lessThan": "4.22.2",
              "status": "affected",
              "version": "4.19.0",
              "versionType": "maven"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Leon Zlobecki"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Andrea Cosentino"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eImproper Restriction of XML External Entity Reference vulnerability in Apache Camel Saxon component.\u003c/p\u003e\u003cp\u003eThis issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.2.\u003c/p\u003e\u003cp\u003eXQueryBuilder in camel-saxon, which evaluates expressions for the xquery language and the xquery component, built its default Saxon Configuration with parse options that set only a whitespace stripping rule, leaving the XML parser at its defaults, under which a DOCTYPE declaration is accepted and external entities are resolved. A message body of type String or byte[], or any body read as an InputStream, is first turned into a javax.xml.transform.Source by Camel\u0027s own XML type converters, which configure the parser against external entities, so those bodies were not affected. A body that was already a Source, however, was handed to Saxon unchanged, and when that Source still had to be parsed, as a stream-based Source does, Saxon parsed it with that Configuration, bypassing the protection applied to the other body types. Such a body arises, for example, after a route converts the message with convertBodyTo(Source.class), or when a component or processor earlier in the route sets the body to a stream-based Source. A DOCTYPE with an external subset, or an external entity, declared in that body was therefore resolved and expanded into the document the expression was evaluated against. An external sender whose XML reaches an XQuery expression or an xquery endpoint in that form could read files readable by the Camel process and cause the process to issue requests to hosts the document names. No non-default option is required, since the default Configuration is used whenever the route does not supply one of its own.\u003c/p\u003e\u003cp\u003eUsers are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.5. The 4.14.x releases stream and earlier, as well as the 4.15.x to 4.17.x and 4.19.x to 4.21.x release lines, reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release. For deployments that cannot upgrade immediately, do not evaluate XQuery over a message body that is already a javax.xml.transform.Source when that body carries XML from an untrusted sender, or set the configuration option of the xquery endpoint or language to a Saxon Configuration whose parse options refuse a DOCTYPE declaration and disable external entities and external DTD loading, which is what the fixed releases now apply by default.\u003c/p\u003e"
            }
          ],
          "value": "Improper Restriction of XML External Entity Reference vulnerability in Apache Camel Saxon component.\n\n\n\nThis issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.2.\n\n\n\nXQueryBuilder in camel-saxon, which evaluates expressions for the xquery language and the xquery component, built its default Saxon Configuration with parse options that set only a whitespace stripping rule, leaving the XML parser at its defaults, under which a DOCTYPE declaration is accepted and external entities are resolved. A message body of type String or byte[], or any body read as an InputStream, is first turned into a javax.xml.transform.Source by Camel\u0027s own XML type converters, which configure the parser against external entities, so those bodies were not affected. A body that was already a Source, however, was handed to Saxon unchanged, and when that Source still had to be parsed, as a stream-based Source does, Saxon parsed it with that Configuration, bypassing the protection applied to the other body types. Such a body arises, for example, after a route converts the message with convertBodyTo(Source.class), or when a component or processor earlier in the route sets the body to a stream-based Source. A DOCTYPE with an external subset, or an external entity, declared in that body was therefore resolved and expanded into the document the expression was evaluated against. An external sender whose XML reaches an XQuery expression or an xquery endpoint in that form could read files readable by the Camel process and cause the process to issue requests to hosts the document names. No non-default option is required, since the default Configuration is used whenever the route does not supply one of its own.\n\n\n\nUsers are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.5. The 4.14.x releases stream and earlier, as well as the 4.15.x to 4.17.x and 4.19.x to 4.21.x release lines, reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release. For deployments that cannot upgrade immediately, do not evaluate XQuery over a message body that is already a javax.xml.transform.Source when that body carries XML from an untrusted sender, or set the configuration option of the xquery endpoint or language to a Saxon Configuration whose parse options refuse a DOCTYPE declaration and disable external entities and external DTD loading, which is what the fixed releases now apply by default."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-611",
              "description": "CWE-611 Improper Restriction of XML External Entity Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-26T14:47:03.155Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "name": "Apache Camel Security Advisory - CVE-2026-90885",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://camel.apache.org/security/CVE-2026-90885.html"
        },
        {
          "name": "CAMEL-24691",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://issues.apache.org/jira/browse/CAMEL-24691"
        },
        {
          "name": "Fix on main, released in 4.23.0 (commit 9c23b6868bb92cb19c2b5a7ee624421d760cda8f)",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/apache/camel/pull/26344"
        },
        {
          "name": "Backport to camel-4.22.x for 4.22.2 (commit 0d0ed8bbe38fdae6e778c4f719e80c2e2d0e51b2)",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/apache/camel/pull/26728"
        },
        {
          "name": "Backport to camel-4.18.x, released in 4.18.5 (commit ed513f3a7117c3343a9e31e22e5627498f2fcdb6)",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/apache/camel/pull/26730"
        },
        {
          "name": "CVE-2026-85250, the camel-xpath documentType=InputSource XXE, distinct from this issue",
          "tags": [
            "related"
          ],
          "url": "https://camel.apache.org/security/CVE-2026-85250.html"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUsers are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.5. XQueryBuilder now builds its default Saxon Configuration with parse options that refuse a DOCTYPE declaration and disable external general entities, external parameter entities and external DTD loading, aligning a body that is already a javax.xml.transform.Source with the hardened parser configuration that Camel\u0027s XmlConverter applies to String, byte[] and InputStream bodies. A body that reaches XQuery as an already-built Source and carries a DOCTYPE declaration is now rejected with a parse error. A Configuration supplied through the configuration option of the xquery endpoint or language is used as is and is not modified. The 4.14.x releases stream and earlier, as well as the 4.15.x to 4.17.x and 4.19.x to 4.21.x release lines, reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release.\u003c/p\u003e"
            }
          ],
          "value": "Users are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.5. XQueryBuilder now builds its default Saxon Configuration with parse options that refuse a DOCTYPE declaration and disable external general entities, external parameter entities and external DTD loading, aligning a body that is already a javax.xml.transform.Source with the hardened parser configuration that Camel\u0027s XmlConverter applies to String, byte[] and InputStream bodies. A body that reaches XQuery as an already-built Source and carries a DOCTYPE declaration is now rejected with a parse error. A Configuration supplied through the configuration option of the xquery endpoint or language is used as is and is not modified. The 4.14.x releases stream and earlier, as well as the 4.15.x to 4.17.x and 4.19.x to 4.21.x release lines, reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache Camel: Camel-Saxon XML External Entity Processing - XQueryBuilder Parsed a Message Body That Was Already a javax.xml.transform.Source With Saxon\u0027s Default Parser Settings, so an External Entity Declared in That Body Was Resolved",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eFor deployments that cannot upgrade immediately, do not evaluate XQuery over a message body that is already a javax.xml.transform.Source when that body carries XML from an untrusted sender. Alternatively, set the configuration option of the xquery endpoint or language to a Saxon Configuration whose parse options refuse a DOCTYPE declaration and disable external entities and external DTD loading, which is what the fixed releases now apply by default.\u003c/p\u003e"
            }
          ],
          "value": "For deployments that cannot upgrade immediately, do not evaluate XQuery over a message body that is already a javax.xml.transform.Source when that body carries XML from an untrusted sender. Alternatively, set the configuration option of the xquery endpoint or language to a Saxon Configuration whose parse options refuse a DOCTYPE declaration and disable external entities and external DTD loading, which is what the fixed releases now apply by default."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 1.0.3"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-90885",
    "datePublished": "2026-10-26T14:47:03.155Z",
    "dateReserved": "2026-09-14T08:19:08.798Z",
    "dateUpdated": "2026-10-26T15:35:49.414Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-90885",
      "date": "2026-10-28",
      "epss": "0.00597",
      "percentile": "0.48416"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "collectionURL": "https://repo.maven.apache.org/maven2",
                "defaultStatus": "unaffected",
                "packageName": "org.apache.camel:camel-saxon",
                "packageURL": "pkg:maven/org.apache.camel/camel-saxon",
                "product": "Apache Camel",
                "vendor": "Apache Software Foundation",
                "versions": [
                  {
                    "lessThan": "4.18.5",
                    "status": "affected",
                    "version": "4.0.0",
                    "versionType": "maven"
                  },
                  {
                    "lessThan": "4.22.2",
                    "status": "affected",
                    "version": "4.19.0",
                    "versionType": "maven"
                  }
                ]
              }
            ],
            "source": "security@apache.org"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Improper Restriction of XML External Entity Reference vulnerability in Apache Camel Saxon component.\n\n\n\nThis issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.2.\n\n\n\nXQueryBuilder in camel-saxon, which evaluates expressions for the xquery language and the xquery component, built its default Saxon Configuration with parse options that set only a whitespace stripping rule, leaving the XML parser at its defaults, under which a DOCTYPE declaration is accepted and external entities are resolved. A message body of type String or byte[], or any body read as an InputStream, is first turned into a javax.xml.transform.Source by Camel\u0027s own XML type converters, which configure the parser against external entities, so those bodies were not affected. A body that was already a Source, however, was handed to Saxon unchanged, and when that Source still had to be parsed, as a stream-based Source does, Saxon parsed it with that Configuration, bypassing the protection applied to the other body types. Such a body arises, for example, after a route converts the message with convertBodyTo(Source.class), or when a component or processor earlier in the route sets the body to a stream-based Source. A DOCTYPE with an external subset, or an external entity, declared in that body was therefore resolved and expanded into the document the expression was evaluated against. An external sender whose XML reaches an XQuery expression or an xquery endpoint in that form could read files readable by the Camel process and cause the process to issue requests to hosts the document names. No non-default option is required, since the default Configuration is used whenever the route does not supply one of its own.\n\n\n\nUsers are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.5. The 4.14.x releases stream and earlier, as well as the 4.15.x to 4.17.x and 4.19.x to 4.21.x release lines, reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release. For deployments that cannot upgrade immediately, do not evaluate XQuery over a message body that is already a javax.xml.transform.Source when that body carries XML from an untrusted sender, or set the configuration option of the xquery endpoint or language to a Saxon Configuration whose parse options refuse a DOCTYPE declaration and disable external entities and external DTD loading, which is what the fixed releases now apply by default."
          }
        ],
        "id": "CVE-2026-90885",
        "lastModified": "2026-10-26T16:54:08.707",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "security@apache.org",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-90885",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-26T15:29:02.992870Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-10-26T15:16:45.430",
        "references": [
          {
            "source": "security@apache.org",
            "url": "https://camel.apache.org/security/CVE-2026-85250.html"
          },
          {
            "source": "security@apache.org",
            "url": "https://camel.apache.org/security/CVE-2026-90885.html"
          },
          {
            "source": "security@apache.org",
            "url": "https://github.com/apache/camel/pull/26344"
          },
          {
            "source": "security@apache.org",
            "url": "https://github.com/apache/camel/pull/26728"
          },
          {
            "source": "security@apache.org",
            "url": "https://github.com/apache/camel/pull/26730"
          },
          {
            "source": "security@apache.org",
            "url": "https://issues.apache.org/jira/browse/CAMEL-24691"
          }
        ],
        "sourceIdentifier": "security@apache.org",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-611"
              }
            ],
            "source": "security@apache.org",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-10-27T00:08:57+00:00",
      "cve": "CVE-2026-90885",
      "id": "CVE-2026-90885",
      "initial_release_date": "2026-10-26T14:47:03.155000+00:00",
      "product_status:known_affected": "3",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "org.apache.camel/camel-saxon: camel-saxon: Information disclosure via XML external entity injection",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90885.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-90885",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-10-26T15:29:02.992870Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-26T15:31:22.384Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "collectionURL": "https://repo.maven.apache.org/maven2",
              "defaultStatus": "unaffected",
              "packageName": "org.apache.camel:camel-saxon",
              "packageURL": "pkg:maven/org.apache.camel/camel-saxon",
              "product": "Apache Camel",
              "vendor": "Apache Software Foundation",
              "versions": [
                {
                  "lessThan": "4.18.5",
                  "status": "affected",
                  "version": "4.0.0",
                  "versionType": "maven"
                },
                {
                  "lessThan": "4.22.2",
                  "status": "affected",
                  "version": "4.19.0",
                  "versionType": "maven"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Leon Zlobecki"
            },
            {
              "lang": "en",
              "type": "remediation developer",
              "value": "Andrea Cosentino"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eImproper Restriction of XML External Entity Reference vulnerability in Apache Camel Saxon component.\u003c/p\u003e\u003cp\u003eThis issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.2.\u003c/p\u003e\u003cp\u003eXQueryBuilder in camel-saxon, which evaluates expressions for the xquery language and the xquery component, built its default Saxon Configuration with parse options that set only a whitespace stripping rule, leaving the XML parser at its defaults, under which a DOCTYPE declaration is accepted and external entities are resolved. A message body of type String or byte[], or any body read as an InputStream, is first turned into a javax.xml.transform.Source by Camel\u0027s own XML type converters, which configure the parser against external entities, so those bodies were not affected. A body that was already a Source, however, was handed to Saxon unchanged, and when that Source still had to be parsed, as a stream-based Source does, Saxon parsed it with that Configuration, bypassing the protection applied to the other body types. Such a body arises, for example, after a route converts the message with convertBodyTo(Source.class), or when a component or processor earlier in the route sets the body to a stream-based Source. A DOCTYPE with an external subset, or an external entity, declared in that body was therefore resolved and expanded into the document the expression was evaluated against. An external sender whose XML reaches an XQuery expression or an xquery endpoint in that form could read files readable by the Camel process and cause the process to issue requests to hosts the document names. No non-default option is required, since the default Configuration is used whenever the route does not supply one of its own.\u003c/p\u003e\u003cp\u003eUsers are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.5. The 4.14.x releases stream and earlier, as well as the 4.15.x to 4.17.x and 4.19.x to 4.21.x release lines, reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release. For deployments that cannot upgrade immediately, do not evaluate XQuery over a message body that is already a javax.xml.transform.Source when that body carries XML from an untrusted sender, or set the configuration option of the xquery endpoint or language to a Saxon Configuration whose parse options refuse a DOCTYPE declaration and disable external entities and external DTD loading, which is what the fixed releases now apply by default.\u003c/p\u003e"
                }
              ],
              "value": "Improper Restriction of XML External Entity Reference vulnerability in Apache Camel Saxon component.\n\n\n\nThis issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.2.\n\n\n\nXQueryBuilder in camel-saxon, which evaluates expressions for the xquery language and the xquery component, built its default Saxon Configuration with parse options that set only a whitespace stripping rule, leaving the XML parser at its defaults, under which a DOCTYPE declaration is accepted and external entities are resolved. A message body of type String or byte[], or any body read as an InputStream, is first turned into a javax.xml.transform.Source by Camel\u0027s own XML type converters, which configure the parser against external entities, so those bodies were not affected. A body that was already a Source, however, was handed to Saxon unchanged, and when that Source still had to be parsed, as a stream-based Source does, Saxon parsed it with that Configuration, bypassing the protection applied to the other body types. Such a body arises, for example, after a route converts the message with convertBodyTo(Source.class), or when a component or processor earlier in the route sets the body to a stream-based Source. A DOCTYPE with an external subset, or an external entity, declared in that body was therefore resolved and expanded into the document the expression was evaluated against. An external sender whose XML reaches an XQuery expression or an xquery endpoint in that form could read files readable by the Camel process and cause the process to issue requests to hosts the document names. No non-default option is required, since the default Configuration is used whenever the route does not supply one of its own.\n\n\n\nUsers are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.5. The 4.14.x releases stream and earlier, as well as the 4.15.x to 4.17.x and 4.19.x to 4.21.x release lines, reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release. For deployments that cannot upgrade immediately, do not evaluate XQuery over a message body that is already a javax.xml.transform.Source when that body carries XML from an untrusted sender, or set the configuration option of the xquery endpoint or language to a Saxon Configuration whose parse options refuse a DOCTYPE declaration and disable external entities and external DTD loading, which is what the fixed releases now apply by default."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-611",
                  "description": "CWE-611 Improper Restriction of XML External Entity Reference",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-10-26T14:47:03.155Z",
            "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
            "shortName": "apache"
          },
          "references": [
            {
              "name": "Apache Camel Security Advisory - CVE-2026-90885",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://camel.apache.org/security/CVE-2026-90885.html"
            },
            {
              "name": "CAMEL-24691",
              "tags": [
                "issue-tracking"
              ],
              "url": "https://issues.apache.org/jira/browse/CAMEL-24691"
            },
            {
              "name": "Fix on main, released in 4.23.0 (commit 9c23b6868bb92cb19c2b5a7ee624421d760cda8f)",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/apache/camel/pull/26344"
            },
            {
              "name": "Backport to camel-4.22.x for 4.22.2 (commit 0d0ed8bbe38fdae6e778c4f719e80c2e2d0e51b2)",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/apache/camel/pull/26728"
            },
            {
              "name": "Backport to camel-4.18.x, released in 4.18.5 (commit ed513f3a7117c3343a9e31e22e5627498f2fcdb6)",
              "tags": [
                "patch"
              ],
              "url": "https://github.com/apache/camel/pull/26730"
            },
            {
              "name": "CVE-2026-85250, the camel-xpath documentType=InputSource XXE, distinct from this issue",
              "tags": [
                "related"
              ],
              "url": "https://camel.apache.org/security/CVE-2026-85250.html"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eUsers are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.5. XQueryBuilder now builds its default Saxon Configuration with parse options that refuse a DOCTYPE declaration and disable external general entities, external parameter entities and external DTD loading, aligning a body that is already a javax.xml.transform.Source with the hardened parser configuration that Camel\u0027s XmlConverter applies to String, byte[] and InputStream bodies. A body that reaches XQuery as an already-built Source and carries a DOCTYPE declaration is now rejected with a parse error. A Configuration supplied through the configuration option of the xquery endpoint or language is used as is and is not modified. The 4.14.x releases stream and earlier, as well as the 4.15.x to 4.17.x and 4.19.x to 4.21.x release lines, reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release.\u003c/p\u003e"
                }
              ],
              "value": "Users are recommended to upgrade to version 4.23.0, which fixes the issue. If users are on the 4.22.x releases stream, then they are suggested to upgrade to 4.22.2. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.5. XQueryBuilder now builds its default Saxon Configuration with parse options that refuse a DOCTYPE declaration and disable external general entities, external parameter entities and external DTD loading, aligning a body that is already a javax.xml.transform.Source with the hardened parser configuration that Camel\u0027s XmlConverter applies to String, byte[] and InputStream bodies. A body that reaches XQuery as an already-built Source and carries a DOCTYPE declaration is now rejected with a parse error. A Configuration supplied through the configuration option of the xquery endpoint or language is used as is and is not modified. The 4.14.x releases stream and earlier, as well as the 4.15.x to 4.17.x and 4.19.x to 4.21.x release lines, reached end of life before this issue was resolved and will not receive a fix, so deployments on them must move to a supported release."
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Apache Camel: Camel-Saxon XML External Entity Processing - XQueryBuilder Parsed a Message Body That Was Already a javax.xml.transform.Source With Saxon\u0027s Default Parser Settings, so an External Entity Declared in That Body Was Resolved",
          "workarounds": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eFor deployments that cannot upgrade immediately, do not evaluate XQuery over a message body that is already a javax.xml.transform.Source when that body carries XML from an untrusted sender. Alternatively, set the configuration option of the xquery endpoint or language to a Saxon Configuration whose parse options refuse a DOCTYPE declaration and disable external entities and external DTD loading, which is what the fixed releases now apply by default.\u003c/p\u003e"
                }
              ],
              "value": "For deployments that cannot upgrade immediately, do not evaluate XQuery over a message body that is already a javax.xml.transform.Source when that body carries XML from an untrusted sender. Alternatively, set the configuration option of the xquery endpoint or language to a Saxon Configuration whose parse options refuse a DOCTYPE declaration and disable external entities and external DTD loading, which is what the fixed releases now apply by default."
            }
          ],
          "x_generator": {
            "engine": "Vulnogram 1.0.3"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "assignerShortName": "apache",
        "cveId": "CVE-2026-90885",
        "datePublished": "2026-10-26T14:47:03.155Z",
        "dateReserved": "2026-09-14T08:19:08.798Z",
        "dateUpdated": "2026-10-26T15:35:49.414Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.