{"id":"JLSEC-2025-30","summary":"An authentication bypass vulnerability exists libcurl \u003c8.0.0 in the connection reuse feature which c...","details":"An authentication bypass vulnerability exists libcurl \u003c8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed.","modified":"2025-11-03T00:04:46.200404Z","published":"2025-10-10T15:04:01.319Z","upstream":["CVE-2023-27536"],"database_specific":{"sources":[{"id":"CVE-2023-27536","modified":"2025-02-14T16:15:33.497Z","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27536","imported":"2025-10-10T14:33:22.320Z","published":"2023-03-30T20:15:07.547Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-27536"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://hackerone.com/reports/1895135"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202310-12"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20230420-0010/"}],"affected":[{"package":{"name":"CURL_jll","ecosystem":"Julia","purl":"pkg:julia/CURL_jll?uuid=b21e61f3-bafc-59ac-ab14-4c5c62d6588d"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.5.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2025/JLSEC-2025-30.json"}},{"package":{"name":"LibCURL_jll","ecosystem":"Julia","purl":"pkg:julia/LibCURL_jll?uuid=deac9b47-8bc7-5906-a0fe-35ac56dc84c0"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.0.1+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2025/JLSEC-2025-30.json"}}],"schema_version":"1.7.3"}