{"id":"CVE-2021-44513","details":"Insecure creation of temporary directories in tmate-ssh-server 2.3.0 allows a local attacker to compromise the integrity of session handling.","modified":"2026-07-09T02:48:48.071499Z","published":"2021-12-07T03:15:07.207Z","references":[{"type":"ADVISORY","url":"https://www.openwall.com/lists/oss-security/2021/12/06/2"},{"type":"FIX","url":"https://github.com/tmate-io/tmate-ssh-server/commit/1c020d1f5ca462f5b150b46a027aaa1bbe3c9596"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/tmate-io/tmate-ssh-server","events":[{"introduced":"0"},{"last_affected":"8fc519a62512bbfedefc7cee55511f3063f2958d"},{"fixed":"1c020d1f5ca462f5b150b46a027aaa1bbe3c9596"}],"database_specific":{"cpe":"cpe:2.3:a:tmate:tmate-ssh-server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"2.3.0"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["2.3.0","base","1.8","to_copy"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44513.json","vanir_signatures_modified":"2026-07-09T02:48:48Z","vanir_signatures":[{"signature_version":"v1","source":"https://github.com/tmate-io/tmate-ssh-server/commit/1c020d1f5ca462f5b150b46a027aaa1bbe3c9596","target":{"file":"tmate-main.c","function":"main"},"deprecated":false,"digest":{"function_hash":"316549956568796934807268776517522169863","length":1691},"id":"CVE-2021-44513-b4fa32fc","signature_type":"Function"},{"deprecated":false,"digest":{"line_hashes":["80207026068406672254999970398237947067","173423011980781517915885963108284035295","306643597840451258993558618338827943855","83505621522273002792930872341900023227","136076212102058759837031658291138517335","310518699917455409064642457929409388070","176290184624510983014086540170709540683","152451022566174787559069177947798513311","72876143243196640920421934159468931924","184047213435252695687185796533395052901","21004837053619300072504869666184033231","211129072721360576409360749973093728649","229693977904854031536266170358141525484","152841598158707753820788575096253228192"],"threshold":0.9},"id":"CVE-2021-44513-b5bc6fcf","signature_type":"Line","signature_version":"v1","source":"https://github.com/tmate-io/tmate-ssh-server/commit/1c020d1f5ca462f5b150b46a027aaa1bbe3c9596","target":{"file":"tmate-main.c"}}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}