Server-Side Template Injection Vulnerability in Agenta LLMOps Platform
CVE-2026-27961

8.8HIGH

Key Information:

Vendor

Agenta-ai

Status
Agenta
Vendor
CVE Published:
26 February 2026

What is CVE-2026-27961?

The Agenta LLMOps platform contains a Server-Side Template Injection (SSTI) vulnerability within its API server evaluator template rendering. This issue affects versions of the platform prior to 0.86.8 and arises from the execution of vulnerable code located in the SDK package, although the issue occurs in the API process specifically during the rendering of evaluators. It is important to note that this vulnerability does not impact the standalone use of the SDK; it only poses a risk for self-hosted or managed deployments of the Agenta platform. To mitigate this risk, users are advised to upgrade to version 0.86.8 or later, which addresses the vulnerability.

Affected Version(s)

agenta < 0.86.8

References

https://github.com/Agenta-AI/agenta/security/advisories/G...
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CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.