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CVE-2026-40319— Giskard has a Regular Expression Denial of Service (ReDoS) in RegexMatching Check

Quick assessment

Affected
Giskard-AI giskard-oss
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Giskard是Giskard开源的一个人工智能系统的评估与测试框架。 Giskard 1.0.2b1之前版本存在安全漏洞，该漏洞源于将用户提供的正则表达式直接传递给re.search函数，可能导致正则表达式拒绝服务攻击。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-40319

Vulnerability Information
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Vulnerability Title
Giskard has a Regular Expression Denial of Service (ReDoS) in RegexMatching Check
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
Giskard 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Giskard是Giskard开源的一个人工智能系统的评估与测试框架。 Giskard 1.0.2b1之前版本存在安全漏洞，该漏洞源于将用户提供的正则表达式直接传递给re.search函数，可能导致正则表达式拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Giskard-AI giskard-oss < 1.0.2b1 -

II. Public POCs for CVE-2026-40319

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III. Intelligence Information for CVE-2026-40319

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IV. Related Vulnerabilities

Same product: giskard-oss
Same vendor: Giskard-AI
Same weakness: CWE-1333

V. Comments for CVE-2026-40319

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