CVE-2026-56306

MediumCVSS 6.4/10Last modified Jun 23, 2026

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.

Metrics

CVSS 3.1 6.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-20

Affected software

No affected versions have been published.

Timeline

Published: Jun 22, 2026
Last modified: Jun 23, 2026
NVD status: Deferred

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