{"cve":"CVE-2025-63811","nvd":{"published":"2025-11-12T18:15:35.953","modified":"2026-06-17T09:53:30.590","status":"Analyzed","description":"An issue was discovered in dvsekhvalnov jose2go 1.5.0 thru 1.7.0 allowing an attacker to cause a Denial-of-Service (DoS) via crafted JSON Web Encryption (JWE) token with an exceptionally high compression ratio.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-400"],"references":["https://github.com/dvsekhvalnov/jose2go/issues/33"],"products":["dvsekhvalnov:jose2go"],"source":"nvd","synced_at":"2026-10-19T22:14:53.307938015+00:00"},"epss":{"cve":"CVE-2025-63811","score":0.00277,"percentile":0.20178,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-9mj6-hxhv-w67j","url":"https://osv.dev/vulnerability/GHSA-9mj6-hxhv-w67j","summary":"jose2go is vulnerable to a JWT bomb attack through its decode function","modified":"2026-09-10T03:50:30.791496857Z","packages":[{"ecosystem":"Go","name":"github.com/dvsekhvalnov/jose2go","purl":"pkg:golang/github.com/dvsekhvalnov/jose2go","ranges":["<1.7.0"],"fixed":["1.7.0"]}]},{"id":"GO-2025-4123","url":"https://osv.dev/vulnerability/GO-2025-4123","summary":"Denial-of-Service (DoS) via crafted JSON Web Encryption (JWE) token high compression ratio in github.com/dvsekhvalnov/jose2go","modified":"2026-02-04T04:04:38.794214Z","packages":[{"ecosystem":"Go","name":"github.com/dvsekhvalnov/jose2go","purl":"pkg:golang/github.com/dvsekhvalnov/jose2go","ranges":["<1.7.0"],"fixed":["1.7.0"]}]}],"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."]}