Vulnerability-Lookup

SUSE-SU-2026:4407-1

Vulnerability from csaf_suse - Published: 2026-09-30 14:24 - Updated: 2026-10-01 10:21

Summary

Security update for jawn

Severity

Important

Notes

Title of the patch: Security update for jawn

Description of the patch: This update for jawn fixes the following issue: - CVE-2026-61814: quadratic rescan complexity in AsyncParser can cause excessive CPU resource exhaustion (bsc#1282548).

Patchnames: SUSE-2026-4407,SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-4407

CVE-2026-61814

7.5 (High)


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

Affected products

Recommended 3 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-json4s-0:0.14.1-150200.3.6.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-parser-0:0.14.1-150200.3.6.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-util-0:0.14.1-150200.3.6.1.noarch	—	Vendor Fix

Threats

Impact important

References

8 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://www.suse.com/support/update/announcement/…	self
https://bugzilla.suse.com/1282548	self
https://www.suse.com/security/cve/CVE-2026-61814/	self
https://www.suse.com/security/cve/CVE-2026-61814	external
https://bugzilla.suse.com/1282548	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Security update for jawn",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for jawn fixes the following issue:\n\n- CVE-2026-61814: quadratic rescan complexity in AsyncParser can cause excessive CPU resource exhaustion (bsc#1282548).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2026-4407,SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-4407",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://www.suse.com/support/security/contact/",
      "name": "SUSE Product Security Team",
      "namespace": "https://www.suse.com/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
        "category": "self",
        "summary": "URL of this CSAF notice",
        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_4407-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2026:4407-1",
        "url": "https://www.suse.com/support/update/announcement/2026/suse-su-20264407-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2026:4407-1",
        "url": "https://www.suse.com/support/update/announcement/2026/suse-su-20264407-1/"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1282548",
        "url": "https://bugzilla.suse.com/1282548"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2026-61814 page",
        "url": "https://www.suse.com/security/cve/CVE-2026-61814/"
      }
    ],
    "title": "Security update for jawn",
    "tracking": {
      "current_release_date": "2026-10-01T10:21:29Z",
      "generator": {
        "date": "2026-09-30T14:24:18Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2026:4407-1",
      "initial_release_date": "2026-09-30T14:24:18Z",
      "revision_history": [
        {
          "date": "2026-09-30T14:24:18Z",
          "number": "1",
          "summary": "Current version"
        },
        {
          "date": "2026-10-01T10:21:29Z",
          "number": "2",
          "summary": "unknown changes"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "jawn-ast-0:0.14.1-150200.3.6.1.noarch",
                "product": {
                  "name": "jawn-ast-0:0.14.1-150200.3.6.1.noarch",
                  "product_id": "jawn-ast-0:0.14.1-150200.3.6.1.noarch",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:typelevel:jawn:0.14.1:*:*:*:*:*:*:*",
                    "purl": "pkg:rpm/suse/jawn-ast@0.14.1-150200.3.6.1?arch=noarch\u0026upstream=jawn-0:0.14.1-150200.3.6.1.src.rpm"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "jawn-json4s-0:0.14.1-150200.3.6.1.noarch",
                "product": {
                  "name": "jawn-json4s-0:0.14.1-150200.3.6.1.noarch",
                  "product_id": "jawn-json4s-0:0.14.1-150200.3.6.1.noarch",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:typelevel:jawn:0.14.1:*:*:*:*:*:*:*",
                    "purl": "pkg:rpm/suse/jawn-json4s@0.14.1-150200.3.6.1?arch=noarch\u0026upstream=jawn-0:0.14.1-150200.3.6.1.src.rpm"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "jawn-parser-0:0.14.1-150200.3.6.1.noarch",
                "product": {
                  "name": "jawn-parser-0:0.14.1-150200.3.6.1.noarch",
                  "product_id": "jawn-parser-0:0.14.1-150200.3.6.1.noarch",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:typelevel:jawn:0.14.1:*:*:*:*:*:*:*",
                    "purl": "pkg:rpm/suse/jawn-parser@0.14.1-150200.3.6.1?arch=noarch\u0026upstream=jawn-0:0.14.1-150200.3.6.1.src.rpm"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "jawn-util-0:0.14.1-150200.3.6.1.noarch",
                "product": {
                  "name": "jawn-util-0:0.14.1-150200.3.6.1.noarch",
                  "product_id": "jawn-util-0:0.14.1-150200.3.6.1.noarch",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:typelevel:jawn:0.14.1:*:*:*:*:*:*:*",
                    "purl": "pkg:rpm/suse/jawn-util@0.14.1-150200.3.6.1?arch=noarch\u0026upstream=jawn-0:0.14.1-150200.3.6.1.src.rpm"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Module for Package Hub 15 SP7",
                "product": {
                  "name": "SUSE Linux Enterprise Module for Package Hub 15 SP7",
                  "product_id": "SUSE Linux Enterprise Module for Package Hub 15 SP7",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:packagehub:15:sp7"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jawn-json4s-0:0.14.1-150200.3.6.1.noarch as component of SUSE Linux Enterprise Module for Package Hub 15 SP7",
          "product_id": "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-json4s-0:0.14.1-150200.3.6.1.noarch"
        },
        "product_reference": "jawn-json4s-0:0.14.1-150200.3.6.1.noarch",
        "relates_to_product_reference": "SUSE Linux Enterprise Module for Package Hub 15 SP7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jawn-parser-0:0.14.1-150200.3.6.1.noarch as component of SUSE Linux Enterprise Module for Package Hub 15 SP7",
          "product_id": "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-parser-0:0.14.1-150200.3.6.1.noarch"
        },
        "product_reference": "jawn-parser-0:0.14.1-150200.3.6.1.noarch",
        "relates_to_product_reference": "SUSE Linux Enterprise Module for Package Hub 15 SP7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "jawn-util-0:0.14.1-150200.3.6.1.noarch as component of SUSE Linux Enterprise Module for Package Hub 15 SP7",
          "product_id": "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-util-0:0.14.1-150200.3.6.1.noarch"
        },
        "product_reference": "jawn-util-0:0.14.1-150200.3.6.1.noarch",
        "relates_to_product_reference": "SUSE Linux Enterprise Module for Package Hub 15 SP7"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-61814",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-61814"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Jawn is an open source JSON parser. Prior to 1.7.0, Jawn\u0027s AsyncParser can perform quadratic work when a single JSON token is delivered across many small chunks because each absorb call rescans the incomplete token from the start. A remote attacker who controls untrusted JSON input and its chunk sizes can exhaust CPU resources and cause denial of service in applications using AsyncParser. This issue is fixed in version 1.7.0.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-json4s-0:0.14.1-150200.3.6.1.noarch",
          "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-parser-0:0.14.1-150200.3.6.1.noarch",
          "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-util-0:0.14.1-150200.3.6.1.noarch"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-61814",
          "url": "https://www.suse.com/security/cve/CVE-2026-61814"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1282548 for CVE-2026-61814",
          "url": "https://bugzilla.suse.com/1282548"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-json4s-0:0.14.1-150200.3.6.1.noarch",
            "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-parser-0:0.14.1-150200.3.6.1.noarch",
            "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-util-0:0.14.1-150200.3.6.1.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-json4s-0:0.14.1-150200.3.6.1.noarch",
            "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-parser-0:0.14.1-150200.3.6.1.noarch",
            "SUSE Linux Enterprise Module for Package Hub 15 SP7:jawn-util-0:0.14.1-150200.3.6.1.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-09-30T14:24:18Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-61814"
    }
  ]
}

CVE-2026-61814 (GCVE-0-2026-61814)

Vulnerability from cvelistv5 – Published: 2026-09-23 18:39 – Updated: 2026-09-23 19:41

Title

Jawn: Quadratic parsing effort in AsyncParser

Summary

Jawn is an open source JSON parser. Prior to 1.7.0, Jawn's AsyncParser can perform quadratic work when a single JSON token is delivered across many small chunks because each absorb call rescans the incomplete token from the start. A remote attacker who controls untrusted JSON input and its chunk sizes can exhaust CPU resources and cause denial of service in applications using AsyncParser. This issue is fixed in version 1.7.0.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-23 19:25 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-407 - Inefficient Algorithmic Complexity

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/typelevel/jawn/security/adviso…	x_refsource_CONFIRM
https://github.com/typelevel/jawn/commit/cddcd5e3…	x_refsource_MISC
https://github.com/typelevel/jawn/releases/tag/v1.7.0	x_refsource_MISC

Impacted products

4 products

Vendor	Product	Version
typelevel	jawn	Affected: < 1.7.0
org.typelevel	jawn-parser_2.12	Affected: < 1.7.0
org.typelevel	jawn-parser_2.13	Affected: < 1.7.0
org.typelevel	jawn-parser_3	Affected: < 1.7.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-61814",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-23T19:25:56.569425Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-23T19:41:40.864Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "jawn",
          "vendor": "typelevel",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.7.0"
            }
          ]
        },
        {
          "product": "jawn-parser_2.12",
          "vendor": "org.typelevel",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.7.0"
            }
          ]
        },
        {
          "product": "jawn-parser_2.13",
          "vendor": "org.typelevel",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.7.0"
            }
          ]
        },
        {
          "product": "jawn-parser_3",
          "vendor": "org.typelevel",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.7.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Jawn is an open source JSON parser. Prior to 1.7.0, Jawn\u0027s AsyncParser can perform quadratic work when a single JSON token is delivered across many small chunks because each absorb call rescans the incomplete token from the start. A remote attacker who controls untrusted JSON input and its chunk sizes can exhaust CPU resources and cause denial of service in applications using AsyncParser. This issue is fixed in version 1.7.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-407",
              "description": "CWE-407: Inefficient Algorithmic Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-23T18:39:01.067Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/typelevel/jawn/security/advisories/GHSA-w4cm-gvhj-cgw6",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/typelevel/jawn/security/advisories/GHSA-w4cm-gvhj-cgw6"
        },
        {
          "name": "https://github.com/typelevel/jawn/commit/cddcd5e3387c356b05953f7b2af103d309687e4b",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/typelevel/jawn/commit/cddcd5e3387c356b05953f7b2af103d309687e4b"
        },
        {
          "name": "https://github.com/typelevel/jawn/releases/tag/v1.7.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/typelevel/jawn/releases/tag/v1.7.0"
        }
      ],
      "source": {
        "advisory": "GHSA-w4cm-gvhj-cgw6",
        "discovery": "UNKNOWN"
      },
      "title": "Jawn: Quadratic parsing effort in AsyncParser"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-61814",
    "datePublished": "2026-09-23T18:39:01.067Z",
    "dateReserved": "2026-07-10T20:17:57.991Z",
    "dateUpdated": "2026-09-23T19:41:40.864Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.

Action not permitted

SUSE-SU-2026:4407-1

CVE-2026-61814 (GCVE-0-2026-61814)

Tags

Sightings

Nomenclature

Related by attack behaviour