{"id":"JLSEC-2026-123","details":"Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.","modified":"2026-04-17T13:15:21.868657Z","published":"2026-04-17T13:07:52.234Z","upstream":["CVE-2021-33560"],"database_specific":{"sources":[{"modified":"2025-12-03T15:15:49.833Z","published":"2021-06-08T11:15:07.767Z","imported":"2026-04-17T00:51:47.252Z","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33560","database_specific":{"status":"Modified"},"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2021-33560","id":"CVE-2021-33560"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://dev.gnupg.org/T5305"},{"type":"WEB","url":"https://dev.gnupg.org/T5328"},{"type":"WEB","url":"https://dev.gnupg.org/T5466"},{"type":"WEB","url":"https://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00021.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202210-13"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuapr2022.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujul2022.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuoct2021.html"},{"type":"WEB","url":"https://dev.gnupg.org/T5305"},{"type":"WEB","url":"https://dev.gnupg.org/T5328"},{"type":"WEB","url":"https://dev.gnupg.org/T5466"},{"type":"WEB","url":"https://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2021/06/msg00021.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202210-13"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuapr2022.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujul2022.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuoct2021.html"}],"affected":[{"package":{"name":"Libgcrypt_jll","ecosystem":"Julia","purl":"pkg:julia/Libgcrypt_jll?uuid=d4300ac3-e22c-5743-9152-c294e39db1e4"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.8.11+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-123.json"}}],"schema_version":"1.7.5"}