{"id":"CVE-2021-26917","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-26917","generatedAt":"2026-10-27T22:28:01.604Z","title":"PyBitmessage through 0.6.3.2 allows attackers to write screen captures to Potentially Unwanted Directories via a crafted apinotifypath value.","description":"PyBitmessage through 0.6.3.2 allows attackers to write screen captures to Potentially Unwanted Directories via a crafted apinotifypath value. NOTE: the discoverer states \"security mitigation may not be necessary as there is no evidence yet that these screen intercepts are actually transported away from the local host.\" NOTE: it is unclear whether there are any common use cases in which apinotifypath is controlled by an attacker","published":"2021-02-08T23:15:12.000Z","lastModified":"2026-06-17T03:44:00.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"cwe":[],"affected":["bitmessage/pybitmessage"],"epss":{"score":0.0055,"percentile":0.45768,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://attack.mitre.org/techniques/T1113/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a7/src/api.py#L35-L37","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/Bitmessage/PyBitmessage/releases","tags":["Release Notes","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://poal.co/s/technology/290479","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://attack.mitre.org/techniques/T1113/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a7/src/api.py#L35-L37","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/Bitmessage/PyBitmessage/releases","tags":["Release Notes","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://poal.co/s/technology/290479","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-26917","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}