DEBIAN-CVE-2026-22772
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.
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/versions1.7.1-1Source reference:
/affected/0/versions1.8.5-1Source reference:
/affected/0/versions1.8.7-1Source reference:
/affected/0/versions1.8.8-1Source 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/versions1.7.1-1Source 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