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Vulnerabilities

Vulnerability · CVE-2026-34172

Giskard is an open-source Python library for testing and evaluating agentic systems.

Published Mar 31, 2026 · catalog updated Jul 24, 2026 · Giskard is an open-source

Check if you run it

No confirmed exploitation is on record for CVE-2026-34172. EPSS is 0.84%. Act only if a listed version of Giskard is an open-source is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Giskard is an open-source).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.84%
Remediation
Advisory link
Affected products
cpe giskard/giskard-agent · cpe giskard/giskard-agents

Giskard is an open-source Python library for testing and evaluating agentic systems. Prior to versions 0.3.4 and 1.0.2b1, ChatWorkflow.chat(message) passes its string argument directly as a Jinja2 template source to a non-sandboxed Environment. A developer who passes user input to this method enables full remote code execution via Jinja2 class traversal. The method name chat and parameter name message naturally invite passing user input directly, but the string is silently parsed as a Jinja2 template, not treated as plain text. This issue has been patched in versions 0.3.4 and 1.0.2b1.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe giskard/giskard-agent1.0.2
  • cpe giskard/giskard-agents1.0.1

How to fix CVE-2026-34172

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-34172. EPSS is 0.84%. Act only if a listed version of Giskard is an open-source is installed.

Which versions are affected?

Compare what you have installed with 1.0.2, 1.0.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine. EPSS 0.84%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 31, 2026 · NIST NVD

    Detected

    Giskard is an open-source Python library for testing and evaluating agentic systems. Prior to versions 0.3.4 and 1.0.2b1, ChatWorkflow.chat(message) passes its string argument directly as a Jinja2 template source to a non-sandboxed Environment. A developer who passes user input to this method enables full remote code execution via Jinja2 class traversal. The method name chat and parameter name mes

  2. Jul 24, 2026 · NIST NVD

    Updated

    Giskard is an open-source Python library for testing and evaluating agentic systems. Prior to versions 0.3.4 and 1.0.2b1, ChatWorkflow.chat(message) passes its string argument directly as a Jinja2 template source to a non-sandboxed Environment. A developer who passes user input to this method enables full remote code execution via Jinja2 class traversal. The method name chat and parameter name mes

Sources

  • CVE.orgVulnerability recordCVE-2026-34172

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-34172

    30-day exploitation probability 0.8%

    first.org
  • NIST NVDVulnerability recordCVE-2026-34172

    Giskard is an open-source Python library for testing and evaluating agentic systems. Prior to versions 0.3.4 and 1.0.2b1, ChatWorkflow.chat(message) passes its string argument directly as a Jinja2 template source to a non-sandboxed Environment. A developer who passes user input t

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.