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ALSA-2026:29702

Vulnerability from osv_almalinux – Published: 2026-06-25 00:00 – Updated: 2026-06-29 10:11 – Source website
VLAI
Summary
Important: runc security update
Details

The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime.

Security Fix(es):

  • net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)
  • crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281)
  • crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)

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:9",
        "name": "runc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4:1.4.2-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime.  \n\nSecurity Fix(es):  \n\n  * net/url: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679)\n  * crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281)\n  * crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)\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-2026:29702",
  "modified": "2026-06-29T10:11:10Z",
  "published": "2026-06-25T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:29702"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-25679"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-32280"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-32281"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2445356"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2456333"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2456339"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2026-29702.html"
    }
  ],
  "related": [
    "CVE-2026-25679",
    "CVE-2026-32281",
    "CVE-2026-32280"
  ],
  "summary": "Important: runc security update"
}



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