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CVE-2026-56306

MEDIUM CVSS: 6.4 Published: 2026-06-22 Modified: 2026-06-23

Description

Capgo before 12.128.2 contains a weak parsing vulnerability in the x-limited-key-id header that allows attackers to bypass subkey enforcement by submitting malformed values, zero, or duplicate headers that result in NaN or falsy values. Remote attackers can manipulate the x-limited-key-id header to disable limited key scoping and execute requests using the main API key context instead of restricted subkey permissions.

Affected Platforms

Unknown

Weakness Type

CWE-20

References