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UnratedFix available

ignition: Fix of 8 CVEs

Type: advisorySources: OSV

- CVE-2026-39820: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in consumeComment in net/mail, where repeated string concatenation made nested comment depth O(n^2) - CVE-2026-42499: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic consumePhrase behavior in net/mail, which repeatedly concatenated encoded-word runs into the previous slice element - CVE-2026-33818: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/asn1 Unmarshal when parsing deeply-nested recursive structures - CVE-2026-56853: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to apply ReadHeaderTimeout to the server's unencrypted HTTP/2 client preface read, and clear the connection timeouts once the connection is handed off to http2 - CVE-2026-56858: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix JavaScript regexp context tracking in html/template, where pathological input could close an unescaped '/' early and inject attacker-controlled content - CVE-2026-56859: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/xml, where DecodeElement reset the recursion depth counter - CVE-2026-56860: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in net/url resolvePath when resolving '..' segments - CVE-2026-56862: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix unbounded key derivation work in crypto/tls, where hand

Products
ignition, ignition-edge, ignition-grub, ignition-validate
Affected versions
Not specified
Fixed versions
2.21.0-1.el9_6.tuxcare.els2
CVEs
CVE-2026-33818, CVE-2026-39820, CVE-2026-42499, CVE-2026-56853, CVE-2026-56858, CVE-2026-56859, CVE-2026-56860, CVE-2026-56862
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 11:48 UTC · Revision 1

Source evidence

ignition: Fix of 8 CVEs

core-osv · Original source

Published 15 Sept 2026, 10:58 UTC

- CVE-2026-39820: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in consumeComment in net/mail, where repeated string concatenation made nested comment depth O(n^2) - CVE-2026-42499: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic consumePhrase behavior in net/mail, which repeatedly concatenated encoded-word runs into the previous slice element - CVE-2026-33818: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/asn1 Unmarshal when parsing deeply-nested recursive structures - CVE-2026-56853: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to apply ReadHeaderTimeout to the server's unencrypted HTTP/2 client preface read, and clear the connection timeouts once the connection is handed off to http2 - CVE-2026-56858: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix JavaScript regexp context tracking in html/template, where pathological input could close an unescaped '/' early and inject attacker-controlled content - CVE-2026-56859: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/xml, where DecodeElement reset the recursion depth counter - CVE-2026-56860: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in net/url resolvePath when resolving '..' segments - CVE-2026-56862: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix unbounded key derivation work in crypto/tls, where hand

osv:CLSA-2026-1789469873

ignition

Fixed versions: 2.21.0-1.el9_6.tuxcare.els2

ignition-edge

Fixed versions: 2.21.0-1.el9_6.tuxcare.els2

ignition-grub

Fixed versions: 2.21.0-1.el9_6.tuxcare.els2

ignition-validate

Fixed versions: 2.21.0-1.el9_6.tuxcare.els2

Complete source record
{
  "id": "828663cf6fcd7423ceb3f8327595931548075dcda1390fb7f417b3e0fee9f27d",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1789469873",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ignition: Fix of 8 CVEs",
    "summary": "- CVE-2026-39820: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in consumeComment in net/mail, where repeated string concatenation made nested comment depth O(n^2) - CVE-2026-42499: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic consumePhrase behavior in net/mail, which repeatedly concatenated encoded-word runs into the previous slice element - CVE-2026-33818: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/asn1 Unmarshal when parsing deeply-nested recursive structures - CVE-2026-56853: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to apply ReadHeaderTimeout to the server's unencrypted HTTP/2 client preface read, and clear the connection timeouts once the connection is handed off to http2 - CVE-2026-56858: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix JavaScript regexp context tracking in html/template, where pathological input could close an unescaped '/' early and inject attacker-controlled content - CVE-2026-56859: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/xml, where DecodeElement reset the recursion depth counter - CVE-2026-56860: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in net/url resolvePath when resolving '..' segments - CVE-2026-56862: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix unbounded key derivation work in crypto/tls, where hand",
    "evidence": "osv:CLSA-2026-1789469873",
    "products": [
      {
        "name": {
          "value": "ignition",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.21.0-1.el9_6.tuxcare.els2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ignition-edge",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.21.0-1.el9_6.tuxcare.els2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ignition-grub",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.21.0-1.el9_6.tuxcare.els2",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "ignition-validate",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.21.0-1.el9_6.tuxcare.els2",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1789469873",
      "aliases": [
        "CLSA-2026-1789469873"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.21.0-1.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "ignition",
            "purl": "pkg:rpm/tuxcare/ignition?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789469873.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.21.0-1.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "ignition-edge",
            "purl": "pkg:rpm/tuxcare/ignition-edge?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789469873.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.21.0-1.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "ignition-grub",
            "purl": "pkg:rpm/tuxcare/ignition-grub?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789469873.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.21.0-1.el9_6.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "ignition-validate",
            "purl": "pkg:rpm/tuxcare/ignition-validate?distro=almalinux-9.6",
            "ecosystem": "TuxCare:AlmaLinux:9.6"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789469873.json"
          }
        }
      ],
      "modified": "2026-10-26T09:43:23.342766363Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-33818",
        "CVE-2026-39820",
        "CVE-2026-42499",
        "CVE-2026-56853",
        "CVE-2026-56858",
        "CVE-2026-56859",
        "CVE-2026-56860",
        "CVE-2026-56862"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1789469873.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-33818",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-39820",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-42499",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56853",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56858",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56859",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56860",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-56862"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-33818",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-39820",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-42499",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-56853",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-56858",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-56859",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-56860",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-56862",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 449883,
  "published_at": "2026-09-15T10:58:09+00:00"
}