ALSA-2026:71543

Vulnerability from osv_almalinux – Published: 2026-09-24 00:00 – Updated: 2026-09-26 14:59 – Source website
VLAI
Summary
Important: cockpit-image-builder security update
Details

The image-builder-frontend generates custom images suitable for deploying systems or uploading to the cloud. It integrates into Cockpit as a frontend for osbuild.

Security Fix(es):

  • fast-uri: fast-uri: Server-Side Request Forgery via repeated hostname percent-decoding (CVE-2026-75899)
  • fast-uri: fast-uri: Server-side request forgery via malformed IPv6 normalization (CVE-2026-75975)
  • fast-uri: fast-uri: URI parsing flaw enables server-side request forgery and redirects (CVE-2026-76172)
  • fast-uri: fast-uri: Authority Injection via Unvalidated Port Serialization (CVE-2026-84292)

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.

References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "cockpit-image-builder"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "94.4-1.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The image-builder-frontend generates custom images suitable for deploying systems or uploading to the cloud. It integrates into Cockpit as a frontend for osbuild.  \n\nSecurity Fix(es):  \n\n  * fast-uri: fast-uri: Server-Side Request Forgery via repeated hostname percent-decoding (CVE-2026-75899)\n  * fast-uri: fast-uri: Server-side request forgery via malformed IPv6 normalization (CVE-2026-75975)\n  * fast-uri: fast-uri: URI parsing flaw enables server-side request forgery and redirects (CVE-2026-76172)\n  * fast-uri: fast-uri: Authority Injection via Unvalidated Port Serialization (CVE-2026-84292)\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-2026:71543",
  "modified": "2026-09-26T14:59:10Z",
  "published": "2026-09-24T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:71543"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-75899"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-75975"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-76172"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-84292"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2521778"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2521779"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2521798"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2527747"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-71543.html"
    }
  ],
  "related": [
    "CVE-2026-75899",
    "CVE-2026-75975",
    "CVE-2026-76172",
    "CVE-2026-84292"
  ],
  "summary": "Important: cockpit-image-builder security update"
}



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