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CVE-2026-42273

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

Description (CNA)

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 (CNA)

Vendor / productVersions
dadrus / heimdallaffected < 0.17.14

CWE

CWE-436, CWE-178

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.