CVE-2026-40320: Giskard is an open-source testing framework for AI models

Q: How do I fix CVE-2026-40320?

giskard: upgrade to 1.0.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-40320 being exploited?

CVE-2026-40320 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-40320 affect?

CVE-2026-40320 affects giskard. Severity is high (CVSS 7.8). Giskard is an open-source testing framework for AI models. In versions prior to 1.0.2b1, the ConformityCheck class rendered the rule parameter through Jinja2's default Template() constructor, silently interpreting template expressions at ru

Routine

HIGH 7.8UPGRADE

CVE-2026-40320 is a high-severity flaw (CVSS 7.8) affecting giskard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Giskard is an open-source testing framework for AI models. In versions prior to 1.0.2b1, the ConformityCheck class rendered the rule parameter through Jinja2's default Template() constructor, silently interpreting template expressions at runtime. If check definitions are loaded from an untrusted source, a crafted rule string could achieve arbitrary code execution. Exploitation requires write access to a check definition and subsequent execution o

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.1% (top 96%)
CISA exploited list	No
Weakness	CWE-1336
Published	2026-04-17
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: giskard

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-17 18:16 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

giskard giskard UPGRADE

Affected: < 1.0.2

Fixed in: 1.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy giskard || rpm -q giskard || giskard --version

2. UPGRADE to 1.0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade giskard

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade giskard

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-40320?

giskard: upgrade to 1.0.2. Exact commands for each OS are on this page.

Is CVE-2026-40320 being exploited?

CVE-2026-40320 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-40320 affect?

CVE-2026-40320 affects giskard. Severity is high (CVSS 7.8). Giskard is an open-source testing framework for AI models. In versions prior to 1.0.2b1, the ConformityCheck class rendered the rule parameter through Jinja2's default Template() constructor, silently interpreting template expressions at ru

How urgent is CVE-2026-40320?

Priority 28/100. High severity

Related CVEs

CVE-2026-40319 MEDIUM 5.5 UPGRADE Giskard is an open-source testing framework for AI models

References

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