What’s Vulnerable › Vulnerabilities
CVE-2026-27961: Agenta's Server-Side Template Injection (SSTI) via custom evaluator Jinja2 templates allows RCE
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-02-26 · updated 2026-06-17
- Weakness: CWE-1336
Description
Agenta is an open-source LLMOps platform. A Server-Side Template Injection (SSTI) vulnerability exists in versions prior to 0.86.8 in Agenta's API server evaluator template rendering. Although the vulnerable code lives in the SDK package, it is executed server-side within the API process when running evaluators. This does not affect standalone SDK usage — it only impacts self-hosted or managed Agenta platform deployments. Version 0.86.8 contains a fix for the issue.
Affected products
- Agenta-AI agenta: before 0.86.8 — fixed in 0.86.8
How to fix
Upgrade to a fixed version: Agenta-AI agenta 0.86.8. Check the vendor advisory for mitigations.
References
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