{"id":"DEBIAN-CVE-2025-30204","details":"golang-jwt is a Go implementation of JSON Web Tokens. Starting in version 3.2.0 and prior to versions 5.2.2 and 4.5.2, the function parse.ParseUnverified splits (via a call to strings.Split) its argument (which is untrusted data) on periods. As a result, in the face of a malicious request whose Authorization header consists of Bearer  followed by many period characters, a call to that function incurs allocations to the tune of O(n) bytes (where n stands for the length of the function's argument), with a constant factor of about 16. This issue is fixed in 5.2.2 and 4.5.2.","modified":"2026-08-27T23:05:28.229682723Z","published":"2025-03-21T22:15:26.420Z","upstream":["CVE-2025-30204"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-30204"}],"affected":[{"package":{"name":"golang-github-golang-jwt-jwt","ecosystem":"Debian:12","purl":"pkg:deb/debian/golang-github-golang-jwt-jwt?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.3-1","5.0.0+really4.5.0-1","5.0.0+really4.5.0-1~exp1","5.0.0+really4.5.0-2","5.0.0+really4.5.2-1","5.0.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-30204.json"}},{"package":{"name":"golang-github-golang-jwt-jwt","ecosystem":"Debian:13","purl":"pkg:deb/debian/golang-github-golang-jwt-jwt?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.0+really4.5.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-30204.json"}},{"package":{"name":"golang-github-golang-jwt-jwt","ecosystem":"Debian:14","purl":"pkg:deb/debian/golang-github-golang-jwt-jwt?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.0+really4.5.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-30204.json"}},{"package":{"name":"golang-github-golang-jwt-jwt-v5","ecosystem":"Debian:13","purl":"pkg:deb/debian/golang-github-golang-jwt-jwt-v5?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-30204.json"}},{"package":{"name":"golang-github-golang-jwt-jwt-v5","ecosystem":"Debian:14","purl":"pkg:deb/debian/golang-github-golang-jwt-jwt-v5?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-30204.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}