{"id":"CVE-2026-76242","title":"stigmem-node 0.9.0a1 accepts federation peer key material during peer registration without a separate administrator out-of-band fingerprint approval step","summary":"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 reg…","severity":"critical","cwe":["CWE-295"],"vendor":"stigmem-node","product":"stigmem-node","affected":["stigmem-node < 0.9.0a2"],"patched":["stigmem-node 0.9.0a2"],"published":"2026-08-19","updated":"2026-09-11","sourceUpdated":"2026-09-11T18:28:15.520","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-76242","references":[{"url":"https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-9vp8-3hmv-8fgh","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/stigmem-federation-peer-registration-authentication-bypass","label":"disclosure@vulncheck.com"},{"url":"https://github.com/eidetic-labs/stigmem"},{"url":"https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/CHANGELOG.md#L14-L35"},{"url":"https://github.com/eidetic-labs/stigmem/blob/v0.9.0a2/SECURITY.md"},{"url":"https://github.com/eidetic-labs/stigmem/releases/tag/v0.9.0a2"}],"tags":["nvd","osv","pip"],"epss":0.00267,"epssPercentile":0.19098,"aliases":["GHSA-9vp8-3hmv-8fgh"],"ecosystem":"pip","ingestedAt":"2026-08-20T19:23:05.694Z","slug":"CVE-2026-76242","body":"## Overview\n\nstigmem-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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-76242)\n\nAffected packages:\n\n- `stigmem-node < 0.9.0a2`\n\nPatched in:\n\n- `stigmem-node 0.9.0a2`\n\nSource: https://osv.dev/vulnerability/GHSA-9vp8-3hmv-8fgh","depth":"midnight","depthScore":52,"depthScoreParts":{"impact":52.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}