Vulnerability-Lookup

FKIE_CVE-2026-42527

Vulnerability from fkie_nvd - Published: 2026-07-06 09:16 - Updated: 2026-07-07 23:42

Severity

8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

Deserialization of Untrusted Data vulnerability in Apache Camel. The default ObjectInputFilter pattern shipped with several Apache Camel components for defense-in-depth deserialization filtering ('java.**;javax.**;org.apache.camel.**;!*', or the no-'javax.**' variant in the aggregation-repository components) uses a recursive 'java.**' glob that admits classes whose hashCode/equals/readObject methods perform network I/O, notably java.net.URL and java.net.InetAddress. When an attacker can deliver a Java-serialized payload to an affected Camel consumer, deserialization of a HashMap (or any collection that calls hashCode on its elements) containing java.net.URL keys causes the JVM to issue DNS queries to the attacker-supplied host during the deserialization side-effect. The class-level filter check passes because the resulting object's class (HashMap) is allow-listed; the DNS query is observable on an attacker-controlled DNS server, providing an out-of-band side channel. The exposure is highest on the camel-jms family because JmsBinding.extractBodyFromJms invokes ObjectMessage.getObject() unconditionally when mapJmsMessage=true (default). Affected components: camel-jms, camel-sjms, camel-amqp, camel-mina, camel-netty, camel-netty-http, camel-vertx-http, camel-infinispan, and the aggregation repository components camel-leveldb, camel-cassandraql, camel-consul, camel-sql (JDBC aggregation repository). This issue affects Apache Camel: from 4.14.0 before 4.14.8, from 4.15.0 before 4.18.3, from 4.19.0 before 4.21.0. Users are recommended to upgrade to a version that contains the CAMEL-23372 fix once available: 4.21.0 for the 4.21.x line, 4.18.3 for the 4.18.x line, and 4.14.8 for the 4.14.x line. For deployments that cannot upgrade immediately, configure a JMS-provider-side allow-list (Apache ActiveMQ Artemis 'deserializationAllowList' / 'deserializationDenyList', Apache ActiveMQ Classic 'org.apache.activemq.SERIALIZABLE_PACKAGES') as the primary mitigation, and/or override the in-code default via the endpoint-level 'deserializationFilter' option or the JVM-wide '-Djdk.serialFilter' system property with an explicit deny: '!java.net.**;java.**;javax.**;org.apache.camel.**;!*' (or '!java.net.**;java.**;org.apache.camel.**;!*' for the aggregation-repository components, which do not include javax.**).

References

	URL	Tags
	security@apache.org	https://camel.apache.org/security/CVE-2026-42527.html	Mitigation, Vendor Advisory
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/07/05/4	Mailing List, Third Party Advisory

Impacted products

Vendor	Product	Version
apache	camel	*
apache	camel	*
apache	camel	4.20.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.camel:camel",
          "product": "Apache Camel",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "4.14.8",
              "status": "affected",
              "version": "4.14.0",
              "versionType": "semver"
            },
            {
              "lessThan": "4.18.3",
              "status": "affected",
              "version": "4.15.0",
              "versionType": "semver"
            },
            {
              "lessThan": "4.21.0",
              "status": "affected",
              "version": "4.19.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "58BD2573-EEBB-4D76-B3B7-038A53515204",
              "versionEndExcluding": "4.14.8",
              "versionStartIncluding": "4.14.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3F672322-AA52-4621-B687-76B5AC9D619F",
              "versionEndExcluding": "4.18.3",
              "versionStartIncluding": "4.18.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:apache:camel:4.20.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "526A7504-CAAA-43DD-97B2-8A18093E97C9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Deserialization of Untrusted Data vulnerability in Apache Camel.\n\nThe default ObjectInputFilter pattern shipped with several Apache Camel components for defense-in-depth deserialization filtering (\u0027java.**;javax.**;org.apache.camel.**;!*\u0027, or the no-\u0027javax.**\u0027 variant in the aggregation-repository components) uses a recursive \u0027java.**\u0027 glob that admits classes whose hashCode/equals/readObject methods perform network I/O, notably java.net.URL and java.net.InetAddress. When an attacker can deliver a Java-serialized payload to an affected Camel consumer, deserialization of a HashMap (or any collection that calls hashCode on its elements) containing java.net.URL keys causes the JVM to issue DNS queries to the attacker-supplied host during the deserialization side-effect. The class-level filter check passes because the resulting object\u0027s class (HashMap) is allow-listed; the DNS query is observable on an attacker-controlled DNS server, providing an out-of-band side channel. The exposure is highest on the camel-jms family because JmsBinding.extractBodyFromJms invokes ObjectMessage.getObject() unconditionally when mapJmsMessage=true (default). Affected components: camel-jms, camel-sjms, camel-amqp, camel-mina, camel-netty, camel-netty-http, camel-vertx-http, camel-infinispan, and the aggregation repository components camel-leveldb, camel-cassandraql, camel-consul, camel-sql (JDBC aggregation repository).\nThis issue affects Apache Camel: from 4.14.0 before 4.14.8, from 4.15.0 before 4.18.3, from 4.19.0 before 4.21.0.\n\nUsers are recommended to upgrade to a version that contains the CAMEL-23372 fix once available: 4.21.0 for the 4.21.x line, 4.18.3 for the 4.18.x line, and 4.14.8 for the 4.14.x line. For deployments that cannot upgrade immediately, configure a JMS-provider-side allow-list (Apache ActiveMQ Artemis \u0027deserializationAllowList\u0027 / \u0027deserializationDenyList\u0027, Apache ActiveMQ Classic \u0027org.apache.activemq.SERIALIZABLE_PACKAGES\u0027) as the primary mitigation, and/or override the in-code default via the endpoint-level \u0027deserializationFilter\u0027 option or the JVM-wide \u0027-Djdk.serialFilter\u0027 system property with an explicit deny: \u0027!java.net.**;java.**;javax.**;org.apache.camel.**;!*\u0027 (or \u0027!java.net.**;java.**;org.apache.camel.**;!*\u0027 for the aggregation-repository components, which do not include javax.**)."
    }
  ],
  "id": "CVE-2026-42527",
  "lastModified": "2026-07-07T23:42:40.463",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
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    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
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            {
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            {
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            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-06T18:47:03.658679Z",
          "version": "2.0.3"
        }
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  },
  "published": "2026-07-06T09:16:35.657",
  "references": [
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      "source": "security@apache.org",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/07/05/4"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "security@apache.org",
      "type": "Secondary"
    }
  ]
}

CVE-2026-42527 (GCVE-0-2026-42527)

Vulnerability from cvelistv5 – Published: 2026-07-06 07:55 – Updated: 2026-07-06 18:47

Title

Apache Camel: Permissive default ObjectInputFilter pattern admits java.net.** and enables DNS-based information disclosure

Summary

Severity

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-06 18:47 UTC

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

apache mitre root

References

2 references

URL	Tags
https://camel.apache.org/security/CVE-2026-42527.html	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/07/05/4

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Camel	Affected: 4.14.0 , < 4.14.8 (semver) Affected: 4.15.0 , < 4.18.3 (semver) Affected: 4.19.0 , < 4.21.0 (semver)

Credits

Venkatraman Kumar from Securin Yu Bao from Paypal

Show details on NVD website

JSON

To clipboard

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              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
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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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.