CVE-2026-42272

Published: Mag 08, 2026 Last Modified: Mag 08, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.14, Heimdall handles URL-encoded slashes (%2F) in a case-sensitive manner, while percent-encoding is defined to be case-insensitive. As a result, the lowercase equivalent (%2f) is not recognized and therefore not processed as expected when allow_encoded_slashes is set to off (the default setting). This discrepancy can lead to differences in how request paths are interpreted by heimdall and upstream components, which may result in authorization bypass. This issue has been patched in version 0.17.14.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

Single Data Point

Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.

178

Improper Handling of Case Sensitivity

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Applicable Platforms
Operating Systems: Windows, macOS
View CWE Details
436

Interpretation Conflict

Incomplete
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Other
Potential Impacts:
Unexpected State Varies By Context
Applicable Platforms
All platforms may be affected
View CWE Details
https://github.com/dadrus/heimdall/commit/8b0de6aba23a047cf…
https://github.com/dadrus/heimdall/commit/8b0de6aba23a047cfee3081df878271bb17f4…
https://github.com/dadrus/heimdall/pull/3207
https://github.com/dadrus/heimdall/pull/3207
https://github.com/dadrus/heimdall/releases/tag/v0.17.14
https://github.com/dadrus/heimdall/releases/tag/v0.17.14
https://github.com/dadrus/heimdall/security/advisories/GHSA…
https://github.com/dadrus/heimdall/security/advisories/GHSA-43jv-5j4x-qv67