CVE-2026-40319

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Giskard-AI/giskard-oss/releases/tag/giskard-checks%2Fv1.0.2b1	Release Notes
https://github.com/Giskard-AI/giskard-oss/security/advisories/GHSA-rq2q-4r55-9877	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:giskard:giskard:*:*:*:*:*:*:*:*

History

24 Apr 2026, 20:22

Type	Values Removed	Values Added
First Time		Giskard Giskard giskard
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CPE		cpe:2.3:a:giskard:giskard::::::::
References	~~() https://github.com/Giskard-AI/giskard-oss/releases/tag/giskard-checks%2Fv1.0.2b1 -~~	() https://github.com/Giskard-AI/giskard-oss/releases/tag/giskard-checks%2Fv1.0.2b1 - Release Notes
References	~~() https://github.com/Giskard-AI/giskard-oss/security/advisories/GHSA-rq2q-4r55-9877 -~~	() https://github.com/Giskard-AI/giskard-oss/security/advisories/GHSA-rq2q-4r55-9877 - Vendor Advisory

17 Apr 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-17 18:16

Updated : 2026-04-24 20:22

NVD link : CVE-2026-40319

Mitre link : CVE-2026-40319

CVE.ORG link : CVE-2026-40319

JSON object : View

Products Affected

giskard

giskard

CWE

CWE-1333

Inefficient Regular Expression Complexity

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