CVE-2021-43171

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-08-22 · updated 2026-06-17
Weakness: CWE-347

Description

Improper verification of applications' cryptographic signatures in the /e/OS app store client App Lounge before 0.19q allows attackers in control of the application server to install malicious applications on user's systems by altering the server's API response.

Affected products

E.Foundation App Lounge: before 0.19q — fixed in 0.19q

How to fix

Upgrade to a fixed version: E.Foundation App Lounge 0.19q. Check the vendor advisory for mitigations.

References

https://gitlab.e.foundation/e/os/releases/-/releases/v0.19-q#sparkles-we-embedded-other-improvements
https://nervuri.net/e/apps
https://gitlab.e.foundation/e/os/releases/-/releases/v0.19-q#sparkles-we-embedded-other-improvements
https://nervuri.net/e/apps

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