{"cve":"CVE-2026-76245","nvd":{"published":"2026-08-19T14:17:56.957","modified":"2026-09-11T18:28:15.520","status":"Deferred","description":"stigmem (pip package stigmem-node) version 0.9.0a1 contains a timestamp-handling mismatch in federation peer-token validation that can cause valid peer tokens to be incorrectly treated as expired. This affects the availability and reliability of authenticated federation flows on nodes using federation peer authentication paths. The issue is fixed in 0.9.0a2, which uses the canonical millisecond-based validation path.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":7.1},"cvss_v3":null,"cwes":["CWE-345"],"references":["https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-xh5j-xjfq-qvvx","https://www.vulncheck.com/advisories/stigmem-federation-peer-token-timestamp-validation-bypass"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:38.260478770+00:00"},"epss":{"cve":"CVE-2026-76245","score":0.00238,"percentile":0.14938,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-xh5j-xjfq-qvvx","url":"https://osv.dev/vulnerability/GHSA-xh5j-xjfq-qvvx","summary":"stigmem-node's federation peer token timestamp validation may reject valid peer tokens","modified":"2026-08-20T04:04:13.167005857Z","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."]}