CVE-2026-27952: Agenta is an open-source LLMOps platform

Q: How do I fix CVE-2026-27952?

agenta: upgrade to 0.48.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-27952 being exploited?

CVE-2026-27952 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-2026-27952 affect?

CVE-2026-27952 affects agenta. Severity is high (CVSS 8.8). Agenta is an open-source LLMOps platform. In Agenta-API prior to version 0.48.1, a Python sandbox escape vulnerability existed in Agenta's custom code evaluator. Agenta used RestrictedPython as a sandboxing mechanism for user-supplied evalu

Q: How urgent is CVE-2026-27952?

Priority 48/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2026-27952 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. In Agenta-API prior to version 0.48.1, a Python sandbox escape vulnerability existed in Agenta's custom code evaluator. Agenta used RestrictedPython as a sandboxing mechanism for user-supplied evaluator code, but incorrectly whitelisted the `numpy` package as safe within the sandbox. This allowed authenticated users to bypass the sandbox and achieve arbitrary code execution on the API server. The escape p

Why this priority

High severity
Public exploit reference

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	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-94
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: < 0.48.1

Fixed in: 0.48.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 0.48.1 (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-2026-27952?

agenta: upgrade to 0.48.1. Exact commands for each OS are on this page.

Is CVE-2026-27952 being exploited?

CVE-2026-27952 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-2026-27952 affect?

CVE-2026-27952 affects agenta. Severity is high (CVSS 8.8). Agenta is an open-source LLMOps platform. In Agenta-API prior to version 0.48.1, a Python sandbox escape vulnerability existed in Agenta's custom code evaluator. Agenta used RestrictedPython as a sandboxing mechanism for user-supplied evalu

How urgent is CVE-2026-27952?

Priority 48/100. High severity; Public exploit reference

Software pages

Python vulnerabilities · Pandas and NumPy vulnerabilities

Related CVEs

CVE-2026-27961 HIGH 8.8 UPGRADE Agenta is an open-source LLMOps platform

References

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