CVE-2026-91163
Dashboard / Vulnerabilities / CVE-2026-91163
Summary: Warpgate: Kubernetes listener discloses internal error text to an unauthenticated caller
Details: Warpgate is an open source SSH, HTTPS, and MySQL bastion host for Linux. Prior to 0.29.0, the Kubernetes protocol listener uses AcceptAnyClientCert in warpgate-protocol-kubernetes/src/server/client_certs.rs to accept certificates at the TLS layer and defer validation to warpgate-protocol-kubernetes/src/server/auth.rs, where authentication and lookup failures are rendered verbatim in an HTTP 500 response body. The Kubernetes application in warpgate-protocol-kubernetes/src/server/mod.rs lacks the outer request-logging wrapper used by the HTTP protocol, and failures in warpgate-protocol-kubernetes/src/server/handlers.rs can short-circuit before its inner log point. An unauthenticated network client can therefore induce failures and receive ASN.1/DER parser diagnostics or sea_orm database errors without the attempt being recorded in the gateway log. The disclosed information is limited to internal diagnostics, and no user-data, integrity, or availability impact is established. This issue is fixed in version 0.29.0.
References: https://github.com/warp-tech/warpgate/releases/tag/v0.29.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91163.json, https://github.com/warp-tech/warpgate/security/advisories/GHSA-hrfx-fm67-gv64, https://nvd.nist.gov/vuln/detail/CVE-2026-91163, https://github.com/warp-tech/warpgate/commit/8426196a27c30fca521656653f9df1faf3df7523, https://github.com/warp-tech/warpgate/pull/2547
Affected packages
Package
Name:
Purl:
