# CVE-2026-117691

Keycloak SAML redirect parsing flaw allows unsigned SAML to impersonate users.

- Page: https://www.vulneraibility.com/cve/CVE-2026-117691
- CVSS: 9.1
- Known exploited: not in CISA KEV as of our last sync
- CISA SSVC: exploitation none, automatable yes, technical impact total (assessed 2026-11-05)
- Weakness: CWE-347
- Published: 2026-11-05

## Affected

- Keycloak (SAML HTTP-Redirect binding)

## Impact

Percent-encoded SAML params bypass signature checks, enabling attackers to perform federated account takeover and gain full access.

## Action

Immediate action required

## Recommendation

Apply vendor patch immediately; disable HTTP-Redirect SAML or enforce strict decoding if patch delayed.

## References

- [other] https://access.redhat.com/security/cve/CVE-2026-117691
- [other] https://bugzilla.redhat.com/show_bug.cgi?id=2561977

---
Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.