{"api_version":"1","generated_at":"2026-07-24T18:43:53+00:00","cve":"CVE-2021-26917","urls":{"html":"https://cve.report/CVE-2021-26917","api":"https://cve.report/api/cve/CVE-2021-26917.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-26917","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-26917"},"summary":{"title":"CVE-2021-26917","description":"** DISPUTED ** 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.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2021-02-08 23:15:00","updated_at":"2023-11-07 03:31:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"https://github.com/Bitmessage/PyBitmessage/releases","name":"https://github.com/Bitmessage/PyBitmessage/releases","refsource":"MISC","tags":["Release Notes","Third Party Advisory"],"title":"Releases · Bitmessage/PyBitmessage · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://attack.mitre.org/techniques/T1113/","name":"https://attack.mitre.org/techniques/T1113/","refsource":"MISC","tags":["Third Party Advisory"],"title":"Screen Capture, Technique T1113 - Enterprise | MITRE ATT&CK®","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a7/src/api.py#L35-L37","name":"https://github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a7/src/api.py#L35-L37","refsource":"MISC","tags":["Patch","Third Party Advisory"],"title":"PyBitmessage/api.py at f381721bec31641002e2f240309600c4994855a7 · Bitmessage/PyBitmessage · GitHub","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://poal.co/s/technology/290479","name":"https://poal.co/s/technology/290479","refsource":"MISC","tags":["Exploit","Third Party Advisory"],"title":"Bitmessage Security Bug Report | Poal: Say what you want.","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-26917","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26917","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"26917","vulnerable":"1","versionEndIncluding":"0.6.3.2","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"bitmessage","cpe5":"pybitmessage","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-26917","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"** DISPUTED ** 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."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://poal.co/s/technology/290479","refsource":"MISC","name":"https://poal.co/s/technology/290479"},{"url":"https://github.com/Bitmessage/PyBitmessage/releases","refsource":"MISC","name":"https://github.com/Bitmessage/PyBitmessage/releases"},{"url":"https://github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a7/src/api.py#L35-L37","refsource":"MISC","name":"https://github.com/Bitmessage/PyBitmessage/blob/f381721bec31641002e2f240309600c4994855a7/src/api.py#L35-L37"},{"url":"https://attack.mitre.org/techniques/T1113/","refsource":"MISC","name":"https://attack.mitre.org/techniques/T1113/"}]}},"nvd":{"publishedDate":"2021-02-08 23:15:00","lastModifiedDate":"2023-11-07 03:31:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:P/I:N/A:N","accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":2.1},"severity":"LOW","exploitabilityScore":3.9,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:bitmessage:pybitmessage:*:*:*:*:*:*:*:*","versionEndIncluding":"0.6.3.2","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"26917","Ordinal":"201999","Title":"CVE-2021-26917","CVE":"CVE-2021-26917","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"26917","Ordinal":"1","NoteData":"** DISPUTED ** 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.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"26917","Ordinal":"2","NoteData":"2021-02-08","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"26917","Ordinal":"3","NoteData":"2021-02-08","Type":"Other","Title":"Modified"}]}}}