github - ghsa-fc36-5gc3-jmhx

GHSA-FC36-5GC3-JMHX

Vulnerability from github – Published: 2025-11-19 12:30 – Updated: 2025-11-19 12:30

Details

Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.

Severity ?

7.5 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-11230"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-407"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-19T10:15:45Z",
    "severity": "HIGH"
  },
  "details": "Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.",
  "id": "GHSA-fc36-5gc3-jmhx",
  "modified": "2025-11-19T12:30:20Z",
  "published": "2025-11-19T12:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11230"
    },
    {
      "type": "WEB",
      "url": "https://www.haproxy.com/blog/october-2025-cve-2025-11230-haproxy-mjson-library-denial-of-service-vulnerability"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-11230 (GCVE-0-2025-11230)

Vulnerability from cvelistv5 – Published: 2025-11-19 09:28 – Updated: 2025-11-19 17:09

Title

Denial of service vulnerability in HAProxy mjson library

Summary

Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.

Severity ?

7.5 (High)


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

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

canonical

References

URL

Tags

https://www.haproxy.com/blog/october-2025-cve-202…

Impacted products

	Vendor	Product	Version
	HAProxy Technologies	HAProxy Community Edition	Affected: 2.4.0 , < 2.4.30 (semver) Affected: 2.6.0 , < 2.6.23 (semver) Affected: 2.8.0 , < 2.8.16 (semver) Affected: 3.0.0 , < 3.0.12 (semver) Affected: 3.1.0 , < 3.1.9 (semver) Affected: 3.2.0 , < 3.2.6 (semver)

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JSON

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                "id": "CVE-2025-11230",
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                  },
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                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-19T17:06:27.675545Z",
                "version": "2.0.3"
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    "cna": {
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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-FC36-5GC3-JMHX

CVE-2025-11230 (GCVE-0-2025-11230)

Tags

Sightings

Nomenclature