VULNERABILITY INTELLIGENCE

CVE-2026-40319

CVSS score5.5 MEDIUM
EPSS probability0.15%
CISA KEVNot currently listed
Published2026-04-17
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

Giskard is an open-source testing framework for AI models. In versions prior to 1.0.2b1, the RegexMatching check passes a user-supplied regular expression pattern directly to Python's re.search() without any timeout or complexity guard. A crafted regex pattern can trigger catastrophic backtracking, causing the process to hang indefinitely. Exploitation requires write access to a check definition and subsequent execution of the test suite. This issue has been fixed in giskard-checks version 1.0.2b1.

Weakness classification

  • security-advisories@github.com: CWE-1333

Primary references