{"id":"CVE-2022-39264","aliases":["ALPINE-CVE-2022-39264","DEBIAN-CVE-2022-39264","EUVD-2022-41773","GHSA-8jcp-8jq4-5mm7","UBUNTU-CVE-2022-39264"],"status":"published","title":"nheko vulnerable to secret poisoning using MITM on secret requests by the homeserver","description":"nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00816,"percentile":0.57373,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287","CWE-295"],"published":"2022-09-28T00:00:00Z","modified":"2026-11-03T07:30:44Z","fixes":[{"ecosystem":"Alpine:v3.16","package":"nheko","fixed_in":["0.9.3-r2"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"nheko","fixed_in":["0.10.2-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"nheko","fixed_in":["0.10.2-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"nheko","fixed_in":["0.10.2-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.16","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.3-r2"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.2-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.2-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.2-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0+git20171116.21fdb26-1","0.0+git20171116.21fdb26-2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.6.4-2","0.6.4-2build1","0.6.4-2build2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.0+really0.7.2-4","0.8.2-2build1","0.9.0-1","0.9.0-1build1","0.9.1-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.3-2build1","0.11.3-2build2","0.11.3-2.1","0.11.3-2.1build1","0.11.3+~0.9.2+~1.0.0+~0.3.0-1build3","0.11.3+~0.9.2+~1.0.0+~0.3.0-1build4"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.12.0+~0.10.0+~1.0.0+~0.3.1-4build2","0.12.0+~0.10.0+~1.0.0+~0.3.1-4build3","0.12.1+~0.10.1+~1.0.0+~0.3.1-1","0.12.1+~0.10.1+~1.0.0+~0.3.1-1build1","0.12.1+~0.10.1+~1.0.0+~0.3.1-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.12.1+~0.10.1+~1.0.0+~0.3.1-4ubuntu3","0.12.1-1+ds+~0.10.1+ds+~1.0.0+ds+~0.3.2+ds-1build3","0.12.1-1+ds+~0.10.1+ds+~1.0.0+ds+~0.3.2+ds-1build4"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"nheko","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.12.1+~0.10.1+~1.0.0+~0.3.1-2","0.12.1+~0.10.1+~1.0.0+~0.3.1-4ubuntu3"]}],"products":[{"vendor":"fedoraproject","product":"fedora"},{"vendor":"nheko-reborn","product":"nheko"}],"references":[{"url":"https://github.com/Nheko-Reborn/nheko/security/advisories/GHSA-8jcp-8jq4-5mm7","tags":["x_transferred","Patch","Third Party Advisory","advisory","report"]},{"url":"https://github.com/Nheko-Reborn/nheko/commit/67bee15a389f9b8a9f6c3a340558d1e2319e7199","tags":["x_transferred","Patch","fix","report"]},{"url":"https://github.com/Nheko-Reborn/nheko/releases/tag/v0.10.2","tags":["x_transferred","Release Notes","web","report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YBOL6OOQGPZD2RLYT4EHAWTFXNIHLYEN/","tags":["vendor-advisory","x_transferred","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TA6A5ADUVAYKD3ZFLF2JPZOTIOFJOEU7/","tags":["vendor-advisory","x_transferred","advisory"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2022-39264","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39264.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-39264","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-39264","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-39264","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-39264","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-39264","title":"nheko vulnerable to secret poisoning using MITM on secret requests by the homeserver","description":"nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.","status":"published","published":"2022-09-28T00:00:00Z","modified":"2025-04-23T16:54:53.291Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-295","CWE-287"],"updated_at":"2026-11-02T14:34:39.233406Z"}],"euvd":[{"id":"EUVD-2022-41773","description":"nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.","status":"published","published":"2022-09-28T00:00:00Z","modified":"2025-04-23T16:54:53Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T20:52:11.440801Z"}],"nvd":[{"id":"CVE-2022-39264","description":"nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.","status":"published","published":"2022-09-28T22:15:14.633Z","modified":"2026-06-17T04:58:01.813Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287","CWE-295"],"updated_at":"2026-11-02T14:07:29.026521Z"}],"osv":[{"id":"ALPINE-CVE-2022-39264","description":"nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.","status":"published","published":"2022-09-28T22:15:14.633Z","modified":"2026-11-03T07:30:44.128593798Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T07:50:01.054176Z"},{"id":"CVE-2022-39264","title":"nheko vulnerable to secret poisoning using MITM on secret requests by the homeserver","description":"nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.","status":"published","published":"2022-09-28T00:00:00Z","modified":"2026-10-28T10:27:31.358913661Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-287","CWE-295"],"updated_at":"2026-11-02T15:44:26.53798Z"},{"id":"DEBIAN-CVE-2022-39264","description":"nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.","status":"published","published":"2022-09-28T22:15:14.633Z","modified":"2026-11-03T08:01:55.355036981Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T08:24:50.542442Z"},{"id":"UBUNTU-CVE-2022-39264","description":"nheko is a desktop client for the Matrix communication application. All versions below 0.10.2 are vulnerable homeservers inserting malicious secrets, which could lead to man-in-the-middle attacks. Users can upgrade to version 0.10.2 to protect against this issue. As a workaround, one may apply the patch manually, avoid doing verifications of one's own devices, and/or avoid pressing the request button in the settings menu.","status":"published","published":"2022-09-28T22:15:00Z","modified":"2026-10-17T12:57:14.992289475Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T16:53:55.502114Z"}]}}