CVE-2026-47211: Ouroboros is a local-first runtime for AI coding agents that records their actions and applies user-defined po

Routine

HIGH 8.4

CVE-2026-47211 is a high-severity flaw (CVSS 8.4) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Ouroboros is a local-first runtime for AI coding agents that records their actions and applies user-defined policies to constrain behavior. In versions prior to 0.39.0, if a user clones a malicious repository and runs Ouroboros commands within that directory, it can lead to arbitrary code execution and potential system takeover. The vulnerability stems from Ouroboros loading the .env file from the current working directory. Execution-affecting en

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.4 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Active
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-426
Published	2026-08-03
Last modified	2026-10-23

Publisher (CNA): GitHub, Inc.

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-08-03 20:17 UTCPublished CVE record published
2026-10-23 21:10 UTCUpdated Record last modified

Exact fixes by distribution

Python (pip) · ouroboros-ai · FIXED · 0.39.0 · vulnerable: < 0.39.0 · source

pip install --upgrade "ouroboros-ai>=0.39.0" pip show ouroboros-ai

Fedora 46 · uv · FIXED · 0.13.5-2.fc46 · FEDORA-2026-0a45cde16b · source

sudo dnf upgrade --advisory=FEDORA-2026-0a45cde16b

Fedora ELN · oo7 · FIXED · 0.7.0~beta-3.eln159 · FEDORA-2026-f348262964 · source

sudo dnf upgrade --advisory=FEDORA-2026-f348262964

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-2026-47211?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-47211 being exploited?

CVE-2026-47211 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-2026-47211 affect?

CVE-2026-47211 affects affected software. Severity is high (CVSS 8.4). Ouroboros is a local-first runtime for AI coding agents that records their actions and applies user-defined policies to constrain behavior. In versions prior to 0.39.0, if a user clones a malicious repository and runs Ouroboros commands wit

How urgent is CVE-2026-47211?

Priority 31/100. High severity

References

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