{"id":"JLSEC-2026-1203","summary":"A vulnerability exists where a connection requiring TLS incorrectly reuses an existing...","details":"A vulnerability exists where a connection requiring TLS incorrectly reuses an\nexisting unencrypted connection from the same connection pool. If an initial\ntransfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request\nto that same host bypasses the TLS requirement and instead transmit data\nunencrypted.","modified":"2026-08-07T20:29:06.142756250Z","published":"2026-08-07T20:11:58.984Z","upstream":["CVE-2026-4873","EUVD-2026-29922","GHSA-5fgw-rv54-prjx"],"database_specific":{"sources":[{"modified":"2026-06-17T10:57:22.293Z","published":"2026-05-13T13:01:55.893Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-4873","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4873","database_specific":{"status":"Analyzed"},"id":"CVE-2026-4873","imported":"2026-08-07T19:54:38.575Z"},{"imported":"2026-08-07T19:56:10.652Z","modified":"2026-05-14T15:31:56Z","published":"2026-05-13T21:32:05Z","url":"https://api.github.com/advisories/GHSA-5fgw-rv54-prjx","html_url":"https://github.com/advisories/GHSA-5fgw-rv54-prjx","id":"GHSA-5fgw-rv54-prjx"},{"modified":"2026-05-13T19:30:04Z","published":"2026-05-13T08:27:04Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-29922","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-29922","id":"EUVD-2026-29922","imported":"2026-08-07T19:55:17.337Z"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/04/29/7"},{"type":"WEB","url":"https://curl.se/docs/CVE-2026-4873.html"},{"type":"WEB","url":"https://curl.se/docs/CVE-2026-4873.json"},{"type":"WEB","url":"https://github.com/advisories/GHSA-5fgw-rv54-prjx"},{"type":"WEB","url":"https://hackerone.com/reports/3621851"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4873"}],"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":"8.20.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1203.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":"8.20.0+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1203.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}