Vulnerability-Lookup

alsa-2025:21693

Vulnerability from osv_almalinux

Published

2025-11-18 00:00

Modified

2025-11-19 10:52

Summary

Important: haproxy security update

Details

The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications.

Security Fix(es):

haproxy: denial of service vulnerability in HAProxy mjson library (CVE-2025-11230)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "haproxy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.8.14-1.el9_7.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The haproxy packages provide a reliable, high-performance network load balancer for TCP and HTTP-based applications.  \n\nSecurity Fix(es):  \n\n  * haproxy: denial of service vulnerability in HAProxy mjson library (CVE-2025-11230)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2025:21693",
  "modified": "2025-11-19T10:52:41Z",
  "published": "2025-11-18T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2025:21693"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-11230"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2413003"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2025-21693.html"
    }
  ],
  "related": [
    "CVE-2025-11230"
  ],
  "summary": "Important: haproxy security update"
}

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)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-11230",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-19T17:06:27.675545Z",
                "version": "2.0.3"
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-11-19T17:09:15.642Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "HAProxy Community Edition",
          "programFiles": [
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          ],
          "repo": "https://git.haproxy.org/",
          "vendor": "HAProxy Technologies",
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      "metrics": [
        {
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            "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",
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      "references": [
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    "dateReserved": "2025-10-01T13:10:26.249Z",
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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.

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