{"cve":"CVE-2026-35583","nvd":{"published":"2026-04-07T17:16:33.663","modified":"2026-10-26T21:10:00.170","status":"Analyzed","description":"Emissary is a P2P based data-driven workflow engine. Prior to 8.39.0, the configuration API endpoint (/api/configuration/{name}) validated configuration names using a blacklist approach that checked for \\, /, .., and trailing .. This could potentially be bypassed using URL-encoded variants, double-encoding, or Unicode normalization to achieve path traversal and read configuration files outside the intended directory. This vulnerability is fixed in 8.39.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-22"],"references":["https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-hxf2-gm22-7vcm"],"products":["nsa:emissary"],"source":"nvd","synced_at":"2026-10-26T21:38:48.864438205+00:00"},"epss":{"cve":"CVE-2026-35583","score":0.0032,"percentile":0.24815,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-hxf2-gm22-7vcm","url":"https://osv.dev/vulnerability/GHSA-hxf2-gm22-7vcm","summary":"Emissary has a Path Traversal via Blacklist Bypass in Configuration API","modified":"2026-04-08T00:27:17.482740Z","packages":[{"ecosystem":"Maven","name":"gov.nsa.emissary:emissary","purl":"pkg:maven/gov.nsa.emissary/emissary","ranges":["<8.39.0"],"fixed":["8.39.0"]}]}],"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."]}