GHSA-9vp8-3hmv-8fgh

Source

https://github.com/advisories/GHSA-9vp8-3hmv-8fgh

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-9vp8-3hmv-8fgh/GHSA-9vp8-3hmv-8fgh.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-9vp8-3hmv-8fgh

Aliases

CVE-2026-76242

Published

2026-05-29T22:18:19Z

Modified

2026-08-20T04:04:15Z

Severity

9.1 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

stigmem-node's federation peer registration lacked explicit out-of-band approval

Details

Impact

Federation peer registration accepted peer key material during registration without a separate administrator approval step based on an out-of-band fingerprint check. Impacted deployments are nodes that accept federation peer registration across a network where initial registration could be intercepted or misdirected.

Patches

Patched in 0.9.0a2. Peer registration now uses a pending approval flow, and peer tokens are not accepted until an administrator approves the peer using the expected fingerprint.

Workarounds

Before upgrading, restrict peer registration endpoints to trusted administrative networks and verify peer public-key fingerprints out of band before allowing federation traffic.

Upgrade

Upgrade to the patched release:

pip install --upgrade --pre stigmem-node

If developers install through the Stigmem meta-package instead, they should use the matching extra for deployments, for example:

pip install --upgrade --pre 'stigmem[node]'

Resources

Release: https://github.com/eidetic-labs/stigmem/releases/tag/v0.9.0a2
Changelog: https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/CHANGELOG.md#L14-L35
Security policy and posture: https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/SECURITY.md

Database specific

{
    "cwe_ids": [
        "CWE-295",
        "CWE-345"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-29T22:18:19Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
}

References

Affected packages

PyPI / stigmem-node

Package

Name: stigmem-node; View open source insights on deps.dev
Purl: pkg:pypi/stigmem-node

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.9.0a2

Affected versions

0.*

0.9.0a1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-9vp8-3hmv-8fgh/GHSA-9vp8-3hmv-8fgh.json"