{"id":"CVE-2026-44073","aliases":["ALPINE-CVE-2026-44073","DEBIAN-CVE-2026-44073","EUVD-2026-31220","GHSA-pc7p-8fgv-4x9c","UBUNTU-CVE-2026-44073"],"status":"published","title":"seteuid failure ignored in auth modules","description":"Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions.","severity":{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00277,"percentile":0.20298,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-273"],"published":"2026-05-21T07:35:06Z","modified":"2026-11-03T06:33:03Z","fixes":[{"ecosystem":"Alpine:v3.24","package":"netatalk","fixed_in":["4.5.0-r0"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"netatalk","fixed_in":["4.5.0~ds-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.24","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0-r0"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.3~ds-1","4.2.3~ds-1+deb13u1","4.2.3~ds-1+deb13u2","4.2.3~ds-2","4.2.3~ds-2.1","4.4.1~ds-1","4.4.2~ds-1","4.4.3~ds-1","4.5.0~ds-1","4.5.0~ds-2","4.5.0~ds-3","4.5.1~ds-1"]},{"source":"osv","ecosystem":"Debian:14","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0~ds-1"}]}],"versions":["4.2.3~ds-1","4.2.3~ds-2","4.2.3~ds-2.1","4.4.1~ds-1","4.4.2~ds-1","4.4.3~ds-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.2-1ubuntu1","2.2.2-1ubuntu2","2.2.2-1ubuntu2.2","2.2.2-1ubuntu2.2+esm1","2.2.2-1ubuntu2.2+esm2","2.2.2-1ubuntu2.2+esm3","2.2.2-1ubuntu2.2+esm4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.5-1","2.2.5-1ubuntu0.2","2.2.5-1ubuntu0.2+esm1","2.2.5-1ubuntu0.2+esm2","2.2.5-1ubuntu0.2+esm3","2.2.5-1ubuntu0.2+esm4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.6-1","2.2.6-1ubuntu0.18.04.2","2.2.6-1ubuntu0.18.04.2+esm1","2.2.6-1ubuntu0.18.04.2+esm2","2.2.6-1ubuntu0.18.04.2+esm3","2.2.6-1ubuntu0.18.04.2+esm4"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.12~ds-3","3.1.12~ds-4","3.1.12~ds-4ubuntu0.20.04.1","3.1.12~ds-4ubuntu0.20.04.3","3.1.12~ds-4ubuntu0.20.04.3+esm1","3.1.12~ds-4ubuntu0.20.04.4","3.1.12~ds-4ubuntu0.20.04.4+esm1","3.1.12~ds-4ubuntu0.20.04.4+esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.12~ds-9","3.1.12~ds-9build1","3.1.12~ds-9ubuntu0.22.04.1","3.1.12~ds-9ubuntu0.22.04.3","3.1.12~ds-9ubuntu0.22.04.3+esm1","3.1.12~ds-9ubuntu0.22.04.4","3.1.12~ds-9ubuntu0.22.04.4+esm1","3.1.12~ds-9ubuntu0.22.04.4+esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.15~ds-1ubuntu1","3.1.18~ds-1","3.1.18~ds-1build2","3.1.18~ds-1build4","3.1.18~ds-1ubuntu0.1~esm1","3.1.18~ds-1ubuntu0.1~esm2","3.1.18~ds-1ubuntu0.1~esm3"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.1.2~ds-4","4.2.1~ds-1","4.2.3~ds-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.3~ds-2.1","4.4.3~ds-1","4.5.0~ds-3","4.5.1~ds-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"netatalk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.3~ds-1","4.2.3~ds-2","4.2.3~ds-2.1","4.2.3~ds-2.1ubuntu0.1","4.2.3~ds-2.1ubuntu0.2"]}],"products":[{"vendor":"netatalk","product":"netatalk"}],"references":[{"url":"https://netatalk.io/security/CVE-2026-44073","tags":["vendor-advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44073"},{"url":"https://github.com/advisories/GHSA-pc7p-8fgv-4x9c"},{"url":"https://security.alpinelinux.org/vuln/CVE-2026-44073","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-44073","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-44073","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-44073","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-44073","title":"seteuid 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conditions.","status":"published","published":"2026-05-21T07:35:06Z","modified":"2026-05-21T12:23:53Z","cvss":[{"version":"3.1","score":4,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T18:21:13.845677Z"}],"ghsa":[{"id":"GHSA-pc7p-8fgv-4x9c","title":"Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(...","description":"Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions.","status":"published","published":"2026-05-21T09:32:10Z","modified":"2026-05-21T09:32:16Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-273"],"updated_at":"2026-11-02T15:08:15.106873Z"}],"nvd":[{"id":"CVE-2026-44073","description":"Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions.","status":"published","published":"2026-05-21T08:16:22.913Z","modified":"2026-07-23T16:10:00.137Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-273"],"updated_at":"2026-11-02T14:12:19.752984Z"}],"osv":[{"id":"ALPINE-CVE-2026-44073","description":"Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions.","status":"published","published":"2026-05-21T08:16:22.913Z","modified":"2026-11-03T06:33:03.175271563Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-03T07:15:53.944853Z"},{"id":"DEBIAN-CVE-2026-44073","description":"Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions.","status":"published","published":"2026-05-21T08:16:22.913Z","modified":"2026-10-01T03:03:05.883423267Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T15:45:55.669088Z"},{"id":"UBUNTU-CVE-2026-44073","description":"Authentication modules in Netatalk 1.5.0 through 4.4.2 fail to check the return value of seteuid(), which may allow a remote authenticated attacker to retain elevated privileges under error conditions.","status":"published","published":"2026-05-21T08:16:00Z","modified":"2026-10-17T12:58:18.910297034Z","cvss":[{"version":"3.1","score":5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T16:56:22.075798Z"}]}}