Description

Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.14, Heimdall performs rule matching on the raw (non-normalized) request path, while downstream components may normalize dot-segments according to RFC 3986, Section 6.2.2.3. This discrepancy can result in heimdall authorizing a request for one path (e.g., /user/../admin, or URL-encoded variants such as /user/%2e%2e/admin or /user/%2e%2e%2fadmin. The latter would require the allow_encoded_slashes option to be set to on or no_decode.) while the downstream ultimately processes a different, normalized path (/admin). This issue has been patched in version 0.17.14.

INFO

Published Date :

2026-05-08T03:43:41.597Z

Last Modified :

2026-05-08T03:43:41.597Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-42274 vulnerability.

Vendors Products
Dadrus
  • Heimdall

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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Privileges Required
User Interaction
VS Confidentiality
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SS Confidentiality
SS Integrity
SS Availability