{"id":"CVE-2022-39264","summary":"nheko vulnerable to secret poisoning using MITM on secret requests by the homeserver","details":"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.","aliases":["GHSA-8jcp-8jq4-5mm7"],"modified":"2026-08-12T13:32:12.082261Z","published":"2022-09-28T00:00:00Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-287","CWE-295"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39264.json"},"references":[{"type":"WEB","url":"https://github.com/Nheko-Reborn/nheko/releases/tag/v0.10.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39264.json"},{"type":"ADVISORY","url":"https://github.com/Nheko-Reborn/nheko/security/advisories/GHSA-8jcp-8jq4-5mm7"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TA6A5ADUVAYKD3ZFLF2JPZOTIOFJOEU7/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YBOL6OOQGPZD2RLYT4EHAWTFXNIHLYEN/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-39264"},{"type":"FIX","url":"https://github.com/Nheko-Reborn/nheko/commit/67bee15a389f9b8a9f6c3a340558d1e2319e7199"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nheko-reborn/nheko","events":[{"introduced":"0"},{"fixed":"031a129591d79266055c7bebb9751f893766d4ea"},{"fixed":"67bee15a389f9b8a9f6c3a340558d1e2319e7199"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.10.2"}],"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:nheko-reborn:nheko:*:*:*:*:*:*:*:*"}}],"versions":["v0.10.1-1","v0.10.1","v0.10.0","v0.9.3","v0.9.2","v0.9.1","v0.9.0","v0.8.2","v0.8.2-rc2","v0.8.2-RC","v0.8.1","v0.8.0","v0.7.2","v0.7.1","v0.7.0","v0.7.0-rc1","v0.6.4","v0.6.3","v0.6.2","nightly","v0.6.1","v0.6.0","v0.5.5","v0.5.4","v0.5.3","v0.5.1","v0.5.0","v0.4.3","v0.4.2","v0.4.1","v0.4.0","v0.3.0","v0.2.1","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-39264.json","vanir_signatures_modified":"2026-08-12T13:32:12Z","vanir_signatures":[{"signature_version":"v1","source":"https://github.com/nheko-reborn/nheko/commit/67bee15a389f9b8a9f6c3a340558d1e2319e7199","target":{"file":"src/encryption/Olm.cpp","function":"handle_olm_message"},"deprecated":false,"digest":{"function_hash":"291018063824603245588392495130773345674","length":7519},"id":"CVE-2022-39264-6b3898ca","signature_type":"Function"},{"source":"https://github.com/nheko-reborn/nheko/commit/67bee15a389f9b8a9f6c3a340558d1e2319e7199","target":{"file":"src/encryption/Olm.cpp"},"deprecated":false,"digest":{"line_hashes":["314031684862769409172070955061539386472","325831471101201174799088498847537660337","236106384856876904004523395367649960814","33196057757508825712225508785285125340","233655630507688834009188876799267597409","87736103775668621437547075837966295630","42417660009787073975988348503050134935","226258985755098910598673917254019033526","323489760941158113430027110861296831556","317670211670070139968806350286375219197","174777744952662943395953917597160567225","115590786419917342779649742899714198937","226709516249676092611947230131027552779","748517889673438593601034761148503833","220793449359304666462845026858049220793","75407180318704451699303769443305508093","239745834333312723775072348590760139838","283335571474437161250499508538557490317","318390849187883225212836371263875386024","263595265488124108086666708246724967190","55561841630203954757669042069586102372","316718824892975356328360280134374930613","162842085353348870191657802139718184870","217025498892928169449923417542215827748","91960459332474571870287936021884841493","192777002513267840174796733276251478188","142279533790919268777041459653185142491","44062342022158676327659156186378197412","107566429354175646558288660715061805964","310020016146251776373356844405382659919","321922646630933077107436414231927492400","33025121014981907598564265958629787630"],"threshold":0.9},"id":"CVE-2022-39264-8a2bcadb","signature_type":"Line","signature_version":"v1"}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N"}]}