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VulnerabilityPublished Updated

CVE-2026-40319: giskard-oss · ReDoS

Affects giskard-ossSource CVE Database V5

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Not known to be exploited · CVSS 1.0 Low : upgrade to 1.0.2b1 when convenient.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 4.0 base score
1.0Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.0.2b1
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade giskard-oss to 1.0.2b1.

Affected software

ProductAffectedFixed in
Giskard-AIgiskard-ossAffected
  • <1.0.2b1
Fixed in
  • 1.0.2b1
PyPIgiskard-checkspkg:pypi/giskard-checksOther threatsAffected
  • =1.0.2
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available in giskard-checks version 1.0.2b1. Users should upgrade to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation requires applying the update. No other mitigations are indicated.

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.

References

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