{"id":"CVE-2025-52936","aliases":["DEBIAN-CVE-2025-52936","DLA-4238-1","EUVD-2025-28479","GHSA-7wr7-q3ph-825q","MGASA-2026-0227","UBUNTU-CVE-2025-52936","USN-8360-1"],"status":"published","title":"Improper Link Resolution Before File Access vulnerability in yrutschle/sslh","description":"Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 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cosystem":"Ubuntu:26.04:LTS","package":"sslh","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.4-1ubuntu0.26.04.1"}]}],"versions":["2.1.4-1build1","2.1.4-1build2"]}],"products":[{"vendor":"yrutschle","product":"sslh"}],"references":[{"url":"https://github.com/yrutschle/sslh/pull/494","tags":["patch","fix","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/07/msg00001.html","tags":["web"]},{"url":"https://lists.debian.org/debian-lts-announce/2026/08/msg00004.html","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52936","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7wr7-q3ph-825q"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/52xxx/CVE-2025-52936.json","tags":["advisory"]},{"url":"https://github.com/yrutschle/sslh","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-52936","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2026-0227.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=34345","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/message/7OYJB5CGFUQDS3Z3Y5EBCTJLLCFP33SZ/","tags":["web"]},{"url":"https://www.openwall.com/lists/oss-security/2025/06/13/1","tags":["web"]},{"url":"https://ubuntu.com/security/notices/USN-8360-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-52936","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-52936","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-52936","title":"Improper Link Resolution Before File Access vulnerability in yrutschle/sslh","description":"Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 2.2.2.","status":"published","published":"2025-06-23T09:25:41.764Z","modified":"2026-08-01T18:20:12.766Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/S:N/AU:Y/R:U/V:C/RE:M/U:Amber","level":"critical","assessor":"cna"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:32:31.631102Z"}],"euvd":[{"id":"EUVD-2025-28479","description":"Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 2.2.2.","status":"published","published":"2025-06-23T09:25:41Z","modified":"2026-08-01T18:20:12Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/S:N/AU:Y/R:U/V:C/RE:M/U:Amber","level":"critical"}],"updated_at":"2026-11-02T18:02:24.819631Z"}],"ghsa":[{"id":"GHSA-7wr7-q3ph-825q","title":"Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh...","description":"Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 2.2.2.","status":"published","published":"2025-06-23T21:31:56Z","modified":"2026-08-01T21:31:27Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:M/U:Amber","level":"critical"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T15:10:01.548476Z"}],"nvd":[{"id":"CVE-2025-52936","description":"Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 2.2.2.","status":"published","published":"2025-06-23T10:15:27.57Z","modified":"2026-08-01T19:16:41.817Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:M/U:Amber","level":"critical","assessor":"secondary"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T14:11:14.091082Z"}],"osv":[{"id":"CVE-2025-52936","title":"Improper Link Resolution Before File Access vulnerability in yrutschle/sslh","description":"Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 2.2.2.","status":"published","published":"2025-06-23T09:25:41.764Z","modified":"2026-10-28T02:30:36.725235203Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/S:N/AU:Y/R:U/V:C/RE:M/U:Amber","level":"critical"}],"cwes":["CWE-59"],"updated_at":"2026-11-02T15:44:50.45326Z"},{"id":"DEBIAN-CVE-2025-52936","description":"Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 2.2.2.","status":"published","published":"2025-06-23T10:15:27.57Z","modified":"2026-09-01T20:05:53.78138495Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:M/U:Amber","level":"critical"}],"updated_at":"2026-11-02T15:45:47.378563Z"},{"id":"UBUNTU-CVE-2025-52936","description":"Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 2.2.2.","status":"published","published":"2025-06-23T10:15:00Z","modified":"2026-10-17T12:57:07.844131321Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/S:N/AU:Y/R:U/V:C/RE:M/U:Amber","level":"critical"}],"updated_at":"2026-11-02T16:55:50.31802Z"},{"id":"DLA-4238-1","title":"sslh - security update","status":"published","published":"2025-07-09T00:00:00Z","modified":"2026-03-09T02:11:14.925047Z","updated_at":"2026-11-02T15:46:12.7027Z"},{"id":"MGASA-2026-0227","title":"Updated sslh packages fix security vulnerabilities","description":"CVE-2025-46806, A Use of Out-of-range Pointer Offset vulnerability in\nsslh leads to denial of service on some architectures\nCVE-2025-46807, A Allocation of Resources Without Limits or Throttling\nvulnerability in sslh allows attackers to easily exhaust the file\ndescriptors in sslh and deny legitimate users service.\nCVE-2025-52936, Improper Link Resolution Before File Access ('Link\nFollowing') vulnerability in yrutschle sslh\n","status":"published","published":"2026-06-23T06:04:47Z","modified":"2026-06-23T06:15:04.827663066Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"USN-8360-1","title":"sslh vulnerability","description":"It was discovered that sslh did not properly handle symbolic\nlinks when writing its PID file. A local attacker could\npossibly use this issue to overwrite arbitrary files.","status":"published","published":"2026-06-01T15:12:53Z","modified":"2026-06-01T20:32:56.086110012Z","updated_at":"2026-11-02T16:58:25.103481Z"}]}}