CVE
CVE-2026-27961
Agenta's Server-Side Template Injection (SSTI) via custom evaluator Jinja2 templates allows RCE
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.
Package Versions Affected
Package Version
patch Availability
No items found.
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CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
C
H
U
-
Related Resources
No items found.
References
https://github.com/Agenta-AI/agenta/security/advisories/GHSA-cfr2-mp74-3763, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27961.json, https://nvd.nist.gov/vuln/detail/CVE-2026-27961
Basic Information
Ecosystem
