---
title: "CVE-2026-62674: Omnigent: Shared Agent Bundle Overwrite Leads to Authenticated Runner RCE"
url: https://erroneo.us/security/cve/CVE-2026-62674/
description: "CVE-2026-62674 (omnigent (PyPI)): Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding agents. Prior to 0.3.0, PUT…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-08-21
date_modified: 2026-09-02
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-62674"
kev: false
cvss: 9
epss: 0.00506
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-62674: Omnigent: Shared Agent Bundle Overwrite Leads to Authenticated Runner RCE

**Signal:** Critical, preconditions apply. Severe if exploited, but exploitation needs conditions that may not apply to you. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 42: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 42% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes omnigent (PyPI) < 0.3.0, fixed in 0.3.0 . Check your lockfile, including transitive dependencies.

## What it is

Omnigent is an open-source AI agent framework and meta-harness for orchestrating coding agents. Prior to 0.3.0, PUT /sessions/{sessionid}/agent checks LEVELEDIT permission for a session but does not reject a bound shared or template agent whose agent.sessionid is None. An authenticated user with edit access to a session can replace that shared agent bundle through omnigent/server/routes/sessions.py, add a stdio MCP server, and cause later sessions that use the shared agent to launch an attacker-controlled command through omnigent/tools/mcp.py. The command executes with the Omnigent runner process permissions and can expose files, credentials, workspace data, internal services, and runner availability. This issue is fixed in version 0.3.0.

## Affected packages

- PyPI `omnigent` < 0.3.0 → fixed: 0.3.0

## Affected products (CVE record)

- omnigent-ai omnigent: < 0.3.0

## Severity

- GitHub_M CVSS 3.1: 9 `CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.0 `CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.51% probability of exploitation activity in the next 30 days; percentile 42.

## Sources

- [GitHub Advisory GHSA-jrrm-9hc7-2v3h](https://github.com/advisories/GHSA-jrrm-9hc7-2v3h)
- [CVE.org record CVE-2026-62674](https://www.cve.org/CVERecord?id=CVE-2026-62674)
- [NVD entry CVE-2026-62674](https://nvd.nist.gov/vuln/detail/CVE-2026-62674)
- [github.com](https://github.com/omnigent-ai/omnigent/security/advisories/GHSA-jrrm-9hc7-2v3h)
- [github.com](https://github.com/omnigent-ai/omnigent/pull/1418)
- [github.com](https://github.com/omnigent-ai/omnigent/commit/25a22dc9e6da4648d23749f0a589e47e6aed991b)
- [github.com](https://github.com/omnigent-ai/omnigent/releases/tag/v0.3.0)

---
Source page: https://erroneo.us/security/cve/CVE-2026-62674/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt