CVE-2023-0238: Injecting Activity Loads in WARP Mobile Client

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-08-29 · updated 2026-06-17
Weakness: CWE-200

Description

Due to lack of a security policy, the WARP Mobile Client (<=6.29) for Android was susceptible to this vulnerability which allowed a malicious app installed on a victim's device to exploit a peculiarity in an Android function, wherein under certain conditions, the malicious app could dictate the task behaviour of the WARP app.

Affected products

Cloudflare WARP: before 6.29 — fixed in 6.29

How to fix

Upgrade to a fixed version: Cloudflare WARP 6.29. Check the vendor advisory for mitigations.

References

https://developers.cloudflare.com/warp-client/
https://github.com/cloudflare/advisories/security/advisories/GHSA-23rx-f69w-g75c
https://developers.cloudflare.com/warp-client/
https://github.com/cloudflare/advisories/security/advisories/GHSA-23rx-f69w-g75c

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