CVE-2026-40319
MEDIUMGiskard RegexMatching Check - Regular Expression Denial of Service
Title source: manualDescription
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.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/Giskard-AI/giskard-oss/security/advisories/GHSA-rq2q-4r55-9877
X_Refsource_Misc x_refsource_misc
https://github.com/Giskard-AI/giskard-oss/releases/tag/giskard-checks%2Fv1.0.2b1
Scores
CVSS v3
5.5
EPSS
0.0015
EPSS Percentile
4.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1333
Status
published
Products (3)
giskard/giskard
< 1.0.2
Giskard-AI/giskard-oss
< 1.0.2b1
pypi/giskard-checks
0 - 1.0.2b1PyPI
Published
Apr 17, 2026
Tracked Since
Apr 17, 2026