CVE-2026-42274
high
CVSS v3
—
CVSS v4 NEW
7.8
VIR risk
8.0
Description
Heimdall has an authorization bypass via path normalization mismatch
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/dadrus/heimdall | <0.17.14 | 0.17.14 |
| GO | github.com/dadrus/heimdall | < 0.17.14 | 0.17.14 |
References
- https://github.com/dadrus/heimdall/commit/b5dfa484b7a8c2ce6d8691c026f9da867719947a
- https://github.com/dadrus/heimdall/pull/3209
- https://github.com/dadrus/heimdall/releases/tag/v0.17.14
- https://github.com/dadrus/heimdall/security/advisories/GHSA-3q34-rx83-r6mq
- https://nvd.nist.gov/vuln/detail/CVE-2026-42274
- https://github.com/dadrus/heimdall
- https://www.envoyproxy.io/docs/envoy/latest/api-v3/extensions/filters/network/http_connection_manager/v3/http_connection_manager.proto#envoy-v3-api-field-extensions-filters-network-http-connection-manager-v3-httpconnectionmanager-normalize-path
- https://www.rfc-editor.org/rfc/rfc3986#section-6.2.2.3
- https://github.com/advisories/GHSA-3q34-rx83-r6mq
CWEs
CWE-35 CWE-436
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.