CVE-2026-76242 — stigmem Federation Peer Registration Authentication Bypass
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 f…
Published: 2026-08-19 · CVSS: 9.1 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7