{"id":"CVE-2026-76242","summary":"stigmem Federation Peer Registration Authentication Bypass","details":"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.","aliases":["GHSA-9vp8-3hmv-8fgh"],"modified":"2026-09-13T03:30:52.223069648Z","published":"2026-08-19T14:02:19.435Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76242.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-295"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/76xxx/CVE-2026-76242.json"},{"type":"ADVISORY","url":"https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-9vp8-3hmv-8fgh"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76242"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/stigmem-federation-peer-registration-authentication-bypass"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/eidetic-labs/stigmem","events":[{"introduced":"0"},{"fixed":"18ec5dbe3a3970d804f2013b4ae53dd2da8ed4ac"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"0.9.0a2"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-76242.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}