{"id":"JLSEC-2026-235","summary":"A security vulnerability has been identified in all supported versions of OpenSSL related to the...","details":"A security vulnerability has been identified in all supported versions\n\nof OpenSSL related to the verification of X.509 certificate chains\nthat include policy constraints.  Attackers may be able to exploit this\nvulnerability by creating a malicious certificate chain that triggers\nexponential use of computational resources, leading to a denial-of-service\n(DoS) attack on affected systems.\n\nPolicy processing is disabled by default but can be enabled by passing\nthe `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.","modified":"2026-04-27T19:02:35.165987223Z","published":"2026-04-27T18:33:55.942Z","upstream":["CVE-2023-0464","EUVD-2023-12518","GHSA-w2w6-xp88-5cvw"],"database_specific":{"sources":[{"modified":"2025-05-05T16:15:26.103Z","id":"CVE-2023-0464","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-0464","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0464","imported":"2026-04-27T16:32:37.129Z","database_specific":{"status":"Modified"},"published":"2023-03-22T17:15:13.130Z"},{"modified":"2025-05-05T18:32:35Z","id":"GHSA-w2w6-xp88-5cvw","html_url":"https://github.com/advisories/GHSA-w2w6-xp88-5cvw","imported":"2026-04-27T16:33:30.574Z","url":"https://api.github.com/advisories/GHSA-w2w6-xp88-5cvw","published":"2023-03-22T18:30:37Z"},{"modified":"2025-05-05T16:08:48Z","imported":"2026-04-27T16:33:16.373Z","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-12518","id":"EUVD-2023-12518","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2023-12518","published":"2023-03-22T16:36:47Z"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2017771e2db3e2b96f89bbe8766c3209f6a99545"},{"type":"WEB","url":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2dcd4f1e3115f38cefa43e3efbe9b801c27e642e"},{"type":"WEB","url":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=879f7080d7e141f415c79eaa3a8ac4a3dad0348b"},{"type":"WEB","url":"https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=959c59c7a0164117e7f8366466a32bb1f8d77ff1"},{"type":"WEB","url":"https://github.com/advisories/GHSA-w2w6-xp88-5cvw"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/06/msg00011.html"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0464"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202402-08"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20230406-0006"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20230406-0006/"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20240621-0006"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20240621-0006/"},{"type":"WEB","url":"https://www.couchbase.com/alerts"},{"type":"WEB","url":"https://www.couchbase.com/alerts/"},{"type":"WEB","url":"https://www.debian.org/security/2023/dsa-5417"},{"type":"WEB","url":"https://www.openssl.org/news/secadv/20230322.txt"}],"affected":[{"package":{"name":"OpenSSL_jll","ecosystem":"Julia","purl":"pkg:julia/OpenSSL_jll?uuid=458c3c95-2e84-50aa-8efc-19380b2a3a95"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.1.21+0"},{"introduced":"3.0.8+0"},{"fixed":"3.0.9+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-235.json"}},{"package":{"name":"Openresty_jll","ecosystem":"Julia","purl":"pkg:julia/Openresty_jll?uuid=87da34d4-7b1b-5a94-8376-8cb65bf3132c"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.27.1+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-235.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"}]}