CVE-2026-76242

stigmem Federation Peer Registration Authentication Bypass

Published Aug 19, 2026 CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
Description
stigmem-node 0.9.0a1 accepts federation peer key material during peer registration without a separate administrator out-of-band fingerprint approval step. On nodes that accept federation peer registration over a network where initial registration can be intercepted or misdirected, an attacker can register a malicious peer and gain access to or tamper with federation traffic. Fixed in 0.9.0a2, which introduces a pending approval flow requiring administrator fingerprint verification before peer tokens are accepted.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Eidetic-labs
Eidetic-labs stigmem
Vendors & Products Eidetic-labs
Eidetic-labs stigmem
Type Values Removed Values Added
Description stigmem-node 0.9.0a1 accepts federation peer key material during peer registration without a separate administrator out-of-band fingerprint approval step. On nodes that accept federation peer registration over a network where initial registration can be intercepted or misdirected, an attacker can register a malicious peer and gain access to or tamper with federation traffic. Fixed in 0.9.0a2, which introduces a pending approval flow requiring administrator fingerprint verification before peer tokens are accepted.
Title stigmem Federation Peer Registration Authentication Bypass
Weaknesses CWE-295
References
Metrics cvssV4_0

{'score': 9.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Aug 20, 2026, 3:38 PM
Reserved
Aug 19, 2026, 11:38 AM
Status
Deferred
Published
Aug 19, 2026, 2:17 PM
Modified
Sep 11, 2026, 6:28 PM