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CVE-2026-27961

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ff496ad29c4cc9db756fda80e7b699e0303e6a6915e28d3ca6fa9ae7a2cf8a7e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"agenta","vendor":"Agenta-AI","versions":[{"status":"affected","version":"< 0.86.8"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e332a1cfb12d7545f82ba9d4439d7c2a04870e73b5cad13b07ac0c899ace6a33 · sha256:8475106d8ba88789… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e332a1cfb12d7545f82ba9d4439d7c2a04870e73b5cad13b07ac0c899ace6a33 · sha256:8475106d8ba88789… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-1336","description":"CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e332a1cfb12d7545f82ba9d4439d7c2a04870e73b5cad13b07ac0c899ace6a33 · sha256:8475106d8ba88789… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/Agenta-AI/agenta/security/advisories/GHSA-cfr2-mp74-3763","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Agenta-AI/agenta/security/advisories/GHSA-cfr2-mp74-3763"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e332a1cfb12d7545f82ba9d4439d7c2a04870e73b5cad13b07ac0c899ace6a33 · sha256:8475106d8ba88789… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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