{"cve":"CVE-2026-76242","nvd":{"published":"2026-08-19T14:17:56.567","modified":"2026-09-11T18:28:15.520","status":"Deferred","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.","cvss_v4":{"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","score":9.1},"cvss_v3":null,"cwes":["CWE-295"],"references":["https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-9vp8-3hmv-8fgh","https://www.vulncheck.com/advisories/stigmem-federation-peer-registration-authentication-bypass"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:38.260478770+00:00"},"epss":{"cve":"CVE-2026-76242","score":0.00346,"percentile":0.2816,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-9vp8-3hmv-8fgh","url":"https://osv.dev/vulnerability/GHSA-9vp8-3hmv-8fgh","summary":"stigmem-node's federation peer registration lacked explicit out-of-band approval","modified":"2026-08-20T04:04:15.601026750Z","packages":[{"ecosystem":"PyPI","name":"stigmem-node","purl":"pkg:pypi/stigmem-node","ranges":["<0.9.0a2"],"fixed":["0.9.0a2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}