Unrated severityNVD Advisory· Published Feb 26, 2026· Updated Feb 26, 2026
Agenta's Server-Side Template Injection (SSTI) via custom evaluator Jinja2 templates allows RCE
CVE-2026-27961
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
2- Agenta-AI/agentav5Range: < 0.86.8
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- github.com/Agenta-AI/agenta/security/advisories/GHSA-cfr2-mp74-3763mitrex_refsource_CONFIRM
News mentions
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