Is there a public exploit for CVE-2026-91168?

No public exploit for CVE-2026-91168 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-91168?

CVE-2026-91168 scores CVSS 6.8 (v3.1), rated medium.

What does CVE-2026-91168 affect?

CVE-2026-91168 affects warp-tech warpgate.

6.8 Medium

Warpgate is an open source SSH, HTTPS, and MySQL bastion host for Linux.

CVE-2026-91168

Warpgate is an open source SSH, HTTPS, and MySQL bastion host for Linux. From 0.21.0 until 0.29.0, the Kubernetes request correlator in warpgate-protocol-kubernetes/src/correlator.rs keys an authorized AdmittedTarget by username, targetname, and client IP rather than by the immutable user UUID, while KubernetesSessionHandle::close does not evict the entry. If an account is deleted and a different low-privilege account is created with the same username, the replacement account can successfully authenticate as that recreated username and reuse the predecessor's still-live correlation entry when requesting the same target from the same client IP before kubernetes.sessionmaxage expires. Current-request authentication still occurs, but the reused entry bypasses a fresh target authorization check and can cause Warpgate to proxy requests with Kubernetes target credentials that the replacement account is not authorized to use, exposing cluster resources or permitting unauthorized mutations. This issue is fixed in version 0.29.0.

Assessment

CVSS: 6.8 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 4 November 2026
Last updated: 4 November 2026
Affected: warp-tech · warpgate
Assigner: GitHub_M

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

At the source

EUVD (ENISA)

References

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