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DEBIAN-CVE-2026-22772

Type: advisorySource: OSV1 source record

Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect (OIDC) identity. Prior to 1.8.5, Fulcio's metaRegex() function uses unanchored regex, allowing attackers to bypass MetaIssuer URL validation and trigger SSRF to arbitrary internal services. Since the SSRF only can trigger GET requests, the request cannot mutate state. The response from the GET request is not returned to the caller so data exfiltration is not possible. A malicious actor could attempt to probe an internal network through Blind SSRF. This vulnerability is fixed in 1.8.5.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-22772

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-22772

golang-github-sigstore-fulcio

Source reference: /affected/0/package/name

Affected versions
1.6.5-1

Source reference: /affected/0/versions

1.7.1-1

Source reference: /affected/0/versions

1.8.5-1

Source reference: /affected/0/versions

1.8.7-1

Source reference: /affected/0/versions

1.8.8-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

golang-github-sigstore-fulcio

Source reference: /affected/1/package/name

Affected versions
1.6.5-1

Source reference: /affected/1/versions

1.7.1-1

Source reference: /affected/1/versions

Fixed versions
1.8.5-1

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "golang-github-sigstore-fulcio",
      "purl": "pkg:deb/debian/golang-github-sigstore-fulcio?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1.6.5-1",
      "1.7.1-1",
      "1.8.5-1",
      "1.8.7-1",
      "1.8.8-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22772.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1.8.5-1"
          }
        ]
      }
    ],
    "package": {
      "name": "golang-github-sigstore-fulcio",
      "purl": "pkg:deb/debian/golang-github-sigstore-fulcio?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1.6.5-1",
      "1.7.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-22772.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56217 · Revision 1
Added to Heist Feed
Publisher date
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