CVE-2026-27961: Agenta is an open-source LLMOps platform

Q: How do I fix CVE-2026-27961?

agenta: upgrade to 0.86.8. Exact commands for each OS are on this page.

Q: Is CVE-2026-27961 being exploited?

CVE-2026-27961 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-27961 affect?

CVE-2026-27961 affects agenta. Severity is high (CVSS 8.8). 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, i

Routine

HIGH 8.8UPGRADE

CVE-2026-27961 is a high-severity flaw (CVSS 8.8) affecting agenta. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-1336
Published	2026-02-26
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: agentatech

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-26 02:16 UTCPublished CVE record published
2026-06-17 10:27 UTCUpdated Record last modified

agentatech agenta UPGRADE

Affected: < 0.86.8

Fixed in: 0.86.8

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy agenta || rpm -q agenta || agenta --version

2. UPGRADE to 0.86.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade agenta

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade agenta

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-27961?

agenta: upgrade to 0.86.8. Exact commands for each OS are on this page.

Is CVE-2026-27961 being exploited?

CVE-2026-27961 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-27961 affect?

CVE-2026-27961 affects agenta. Severity is high (CVSS 8.8). 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, i

How urgent is CVE-2026-27961?

Priority 38/100. High severity

Related CVEs

CVE-2026-27952 HIGH 8.8 UPGRADE Agenta is an open-source LLMOps platform

References

← Back to latest CVEs