{"id":"JLSEC-2026-564","summary":"In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized...","details":"In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped session key can cause a stack-based buffer overflow in gpg-agent during PKDECRYPT--kem=CMS handling. This can easily be leveraged for denial of service; however, there is also memory corruption that could lead to remote code execution.","modified":"2026-07-18T00:00:52.390765512Z","published":"2026-05-27T18:18:39.624Z","upstream":["CVE-2026-24881","GHSA-5w36-x85h-pphm","EUVD-2026-4768"],"database_specific":{"sources":[{"database_specific":{"status":"Modified"},"id":"CVE-2026-24881","imported":"2026-07-17T22:08:49.867Z","modified":"2026-07-15T02:18:52.100Z","published":"2026-01-27T19:16:16.517Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-24881","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24881"},{"id":"GHSA-5w36-x85h-pphm","imported":"2026-07-17T22:08:50.036Z","modified":"2026-06-30T03:36:31Z","published":"2026-01-27T21:31:49Z","url":"https://api.github.com/advisories/GHSA-5w36-x85h-pphm","html_url":"https://github.com/advisories/GHSA-5w36-x85h-pphm"},{"id":"EUVD-2026-4768","imported":"2026-07-17T22:08:58.738Z","modified":"2026-06-30T12:06:35Z","published":"2026-01-27T18:36:56Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-4768","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-4768"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-24881"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2433480"},{"type":"WEB","url":"https://dev.gnupg.org/T8044"},{"type":"WEB","url":"https://github.com/advisories/GHSA-5w36-x85h-pphm"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24881"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24881.json"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2026/01/27/8"}],"affected":[{"package":{"name":"GnuPG_jll","ecosystem":"Julia","purl":"pkg:julia/GnuPG_jll?uuid=1522389b-45f8-5faa-af4d-a301b79c50ac"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.5.16+0"},{"fixed":"2.5.17+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-564.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:H/I:H/A:H"}]}