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CVE Vulnerability Details :
CVE-2026-27961
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-26 Feb, 2026 | 01:39
Updated At-26 Feb, 2026 | 19:29
Rejected At-
▼CVE Numbering Authority (CNA)
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.

Affected Products
Vendor
Agenta-AI
Product
agenta
Versions
Affected
  • < 0.86.8
Problem Types
TypeCWE IDDescription
CWECWE-1336CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine
Type: CWE
CWE ID: CWE-1336
Description: CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine
Metrics
VersionBase scoreBase severityVector
3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/Agenta-AI/agenta/security/advisories/GHSA-cfr2-mp74-3763
x_refsource_CONFIRM
Hyperlink: https://github.com/Agenta-AI/agenta/security/advisories/GHSA-cfr2-mp74-3763
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

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Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
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