{"id":"UBUNTU-CVE-2025-63811","details":"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.","modified":"2026-05-20T16:11:27.505786177Z","published":"2025-11-12T18:15:00Z","upstream":["CVE-2025-63811"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-63811"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-63811"}],"affected":[{"package":{"name":"golang-github-dvsekhvalnov-jose2go","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/golang-github-dvsekhvalnov-jose2go?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2-1","binary_name":"golang-github-dvsekhvalnov-jose2go-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-63811.json"}},{"package":{"name":"golang-github-dvsekhvalnov-jose2go","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/golang-github-dvsekhvalnov-jose2go?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-dvsekhvalnov-jose2go-dev","binary_version":"1.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-63811.json"}},{"package":{"name":"golang-github-dvsekhvalnov-jose2go","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/golang-github-dvsekhvalnov-jose2go?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.3-1","binary_name":"golang-github-dvsekhvalnov-jose2go-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-63811.json"}},{"package":{"name":"golang-github-dvsekhvalnov-jose2go","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/golang-github-dvsekhvalnov-jose2go?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.5-1","binary_name":"golang-github-dvsekhvalnov-jose2go-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-63811.json"}},{"package":{"name":"golang-github-dvsekhvalnov-jose2go","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/golang-github-dvsekhvalnov-jose2go?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.5-1","binary_name":"golang-github-dvsekhvalnov-jose2go-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-63811.json"}},{"package":{"name":"golang-github-dvsekhvalnov-jose2go","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/golang-github-dvsekhvalnov-jose2go?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.5-1","binary_name":"golang-github-dvsekhvalnov-jose2go-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-63811.json"}},{"package":{"name":"golang-github-dvsekhvalnov-jose2go","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/golang-github-dvsekhvalnov-jose2go?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-dvsekhvalnov-jose2go-dev","binary_version":"1.5-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-63811.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}