HIGH SeverityCVSS 4.07.8CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

CVE-2026-42273

Last updated May 08, 2026 · Published May 08, 2026

Description

Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.14, Heimdall performs host matching in a case-sensitive manner, while HTTP hostnames are case-insensitive. This discrepancy can result in heimdall failing to match a rule for a request host that differs only in letter casing, potentially causing the request to be classified differently than intended. This issue has been patched in version 0.17.14.

Affected products

1 listed

dadrus:heimdall

Mappings

CWE

CWE-178CWE-436

CAPEC

None listed.