Heimdall: Case-sensitive host matching may lead to policy bypass

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-42273 · Microsoft / collected KEV context

EUVD-2026-28509

GHSA-72h4-mxfc-jx37

GO-2026-5200

cve-program · CVE-2026-42273

• https://github.com/dadrus/heimdall/security/advisories/GHSA-72h4-mxfc-jx37
• https://github.com/dadrus/heimdall/pull/3208
• https://github.com/dadrus/heimdall/commit/3d05e56a9e7ef0355f17482b4322054af4e85943
• https://github.com/dadrus/heimdall/releases/tag/v0.17.14

euvd · EUVD-2026-28509

• https://github.com/dadrus/heimdall/security/advisories/GHSA-72h4-mxfc-jx37
• https://github.com/dadrus/heimdall/pull/3208
• https://github.com/dadrus/heimdall/commit/3d05e56a9e7ef0355f17482b4322054af4e85943
• https://github.com/dadrus/heimdall/releases/tag/v0.17.14

nvd · CVE-2026-42273

• https://github.com/dadrus/heimdall/commit/3d05e56a9e7ef0355f17482b4322054af4e85943
• https://github.com/dadrus/heimdall/pull/3208
• https://github.com/dadrus/heimdall/releases/tag/v0.17.14
• https://github.com/dadrus/heimdall/security/advisories/GHSA-72h4-mxfc-jx37

osv · GHSA-72h4-mxfc-jx37

• https://github.com/dadrus/heimdall/security/advisories/GHSA-72h4-mxfc-jx37
• https://nvd.nist.gov/vuln/detail/CVE-2026-42273
• https://github.com/dadrus/heimdall/pull/3208
• https://github.com/dadrus/heimdall/commit/3d05e56a9e7ef0355f17482b4322054af4e85943
• https://github.com/dadrus/heimdall
• https://github.com/dadrus/heimdall/releases/tag/v0.17.14

osv · GO-2026-5200

• https://github.com/dadrus/heimdall/security/advisories/GHSA-72h4-mxfc-jx37
• https://nvd.nist.gov/vuln/detail/CVE-2026-42273
• https://github.com/dadrus/heimdall/commit/3d05e56a9e7ef0355f17482b4322054af4e85943
• https://github.com/dadrus/heimdall/pull/3208
• https://github.com/dadrus/heimdall/releases/tag/v0.17.14

No related operational record is retained in the current change model.