{"id":"CVE-2022-26181","aliases":["EUVD-2022-30747","GHSA-w6mh-p599-cxh4","UBUNTU-CVE-2022-26181"],"status":"published","title":"Dropbox Lepton v1.2.1-185-g2a08b77 was discovered to contain a heap-buffer-overflow in the...","description":"Dropbox Lepton v1.2.1-185-g2a08b77 was discovered to contain a heap-buffer-overflow in the function aligned_dealloc():src/lepton/bitops.cc:108.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00882,"percentile":0.5948,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2022-02-28T18:33:50Z","modified":"2026-10-28T02:30:52Z","affected":[{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"lepton","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.1+20170405-3","1.2.1+20170405-3build1"]}],"products":[{"vendor":"dropbox","product":"lepton"}],"references":[{"url":"https://github.com/dropbox/lepton/issues/154","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://github.com/dropbox/lepton","tags":["x_refsource_MISC","x_transferred","Product","package","report"]},{"url":"https://drive.google.com/file/d/1bJlHozO37c5NZ1wI0NBWh0yHHyTcfaQL/view?usp=sharing","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-26181","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-w6mh-p599-cxh4"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/26xxx/CVE-2022-26181.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-26181","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-26181","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-26181","description":"Dropbox Lepton v1.2.1-185-g2a08b77 was discovered to contain a heap-buffer-overflow in the function aligned_dealloc():src/lepton/bitops.cc:108.","status":"published","published":"2022-02-28T18:33:50Z","modified":"2024-08-03T04:56:37.908Z","updated_at":"2026-11-02T14:34:26.293612Z"}],"euvd":[{"id":"EUVD-2022-30747","description":"Dropbox Lepton v1.2.1-185-g2a08b77 was discovered to contain a heap-buffer-overflow in the function aligned_dealloc():src/lepton/bitops.cc:108.","status":"published","published":"2022-02-28T18:33:50Z","modified":"2024-08-03T04:56:37Z","updated_at":"2026-11-03T03:25:45.890215Z"}],"ghsa":[{"id":"GHSA-w6mh-p599-cxh4","title":"Dropbox Lepton v1.2.1-185-g2a08b77 was discovered to contain a heap-buffer-overflow in the...","description":"Dropbox Lepton v1.2.1-185-g2a08b77 was discovered to contain a heap-buffer-overflow in the function aligned_dealloc():src/lepton/bitops.cc:108.","status":"published","published":"2022-03-01T00:00:25Z","modified":"2023-02-03T05:06:25Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:53:53.812094Z"}],"nvd":[{"id":"CVE-2022-26181","description":"Dropbox Lepton v1.2.1-185-g2a08b77 was discovered to contain a heap-buffer-overflow in the function aligned_dealloc():src/lepton/bitops.cc:108.","status":"published","published":"2022-02-28T19:15:12.673Z","modified":"2026-06-17T04:34:48.54Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:12.711288Z"}],"osv":[{"id":"UBUNTU-CVE-2022-26181","description":"Dropbox Lepton v1.2.1-185-g2a08b77 was discovered to contain a heap-buffer-overflow in the function aligned_dealloc():src/lepton/bitops.cc:108.","status":"published","published":"2022-02-28T19:15:00Z","modified":"2025-10-24T04:53:33Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:53:53.13624Z"},{"id":"CVE-2022-26181","description":"Dropbox Lepton v1.2.1-185-g2a08b77 was discovered to contain a heap-buffer-overflow in the function aligned_dealloc():src/lepton/bitops.cc:108.","status":"published","published":"2022-02-28T18:33:50Z","modified":"2026-10-28T02:30:52.215477351Z","updated_at":"2026-11-02T15:44:24.758293Z"}]}}