CVE-2021-23827

5.5 mediumEPSS 0.3%

Medium (5.5) in keybase keybase. EPSS 0.3% chance of exploitation in the next 30 days.

Keybase Desktop Client before 5.6.0 on Windows and macOS, and before 5.6.1 on Linux, allows an attacker to obtain potentially sensitive media (such as private pictures) in the Cache and uploadtemps directories. It fails to effectively clear cached pictures, even after deletion via normal methodology within the client, or by utilizing the "Explode message/Explode now" functionality. Local filesystem access is needed by the attacker.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 22% of CVEs (scores of 2026-10-31)
CWE: CWE-312
Published: 2021-02-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

keybase:keybase

References

https://github.com/keybase/client/releases
https://hackerone.com/reports/1074930
https://johnjhacking.com/blog/cve-2021-23827/
https://github.com/keybase/client/releases
https://hackerone.com/reports/1074930

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