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.
History

Fri, 17 Apr 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Giskard-ai
Giskard-ai giskard
Vendors & Products Giskard-ai
Giskard-ai giskard

Fri, 17 Apr 2026 17:30:00 +0000

Type Values Removed Values Added
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.
Title Giskard has a Regular Expression Denial of Service (ReDoS) in RegexMatching Check
Weaknesses CWE-1333
References
Metrics cvssV4_0

{'score': 1, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-17T17:16:37.676Z

Reserved: 2026-04-10T21:41:54.505Z

Link: CVE-2026-40319

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-17T18:16:32.063

Modified: 2026-04-17T19:01:56.030

Link: CVE-2026-40319

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-17T20:40:05Z