CVE-2025-66568
CriticalAdvisory
Published 8 Dec 2025In the index since 6 Sept 2026
- Severity
- Critical
- worst across findings
- CVSS
- 9.3
- base score, highest
- EPSS
- 0.002
- 14th percentile
- CISA KEV
- Not listed
- no confirmed exploitation
- Charts affected
- 5
- of 17,781 indexed, latest versions
- Container images
- 7
- deployed by those charts
- Fix available
- 1 of 1
- affected package
Ruby-saml allows a Libxml2 Canonicalization error to bypass Digest/Signature validation
Carried by container images the latest versions of 5 of 17,781 indexed charts deploy, on 7 images.
| Affected package | Affected versions | Fixed in | Images |
|---|---|---|---|
| ruby-samlgem | 1.7.2, 1.10.2, 1.13.0 | 1.18.0 | 7 |
- OSV records
- GHSA-x4h9-gwv3-r4m4
Charts affected
5 by stars
| Chart | Latest | Affected images | Radar Score |
|---|---|---|---|
| mastodondefault-ghVerified publisher | 0.3.1 | 1 of 3See more | 5,056 |
| zammaddevplayer0Verified publisher | 4.0.5 | 1 of 4See more | 6,110 |
| openprojecthomeenterpriseinc | 0.5.0 | 1 of 1See more | 6,810 |
| gitlabkubesphereVerified publisher | 4.2.3 | 3 of 17See more | 38,133 |
| mastodonrivals-spaceVerified publisher | 3.1.2 | 1 of 3See more | 6,026 |
Container images carrying it
7 by charts deploying them
A fixed version is listed for 1 of the 1 affected package.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| mirrorgitlabcontainers/ | 94d1431683fa | ruby-saml | 1.18.0 | 1 |
| mirrorgitlabcontainers/ | 9efd73993c34 | ruby-saml | 1.18.0 | 1 |
| mirrorgitlabcontainers/ | 30393f990f5c | ruby-saml | 1.18.0 | 1 |
| openproject/ | 734743d11094 | ruby-saml | 1.18.0 | 1 |
| zammad/ | 2808e2dfa810 | ruby-saml | 1.18.0 | 1 |
| ghcr.io/ | 6b18e6d0eda4 | ruby-saml | 1.18.0 | 1 |
| ghcr.io/ | 43b23d55e4be | ruby-saml | 1.18.0 | 1 |