Description

An issue in BitChat for iOS v1.15.0 allows a remote attacker to cause a denial of service via an unauthenticated MESSAGE packet into the mesh gossip cache

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References

Other References

https://barghest.asia/blog/bitchat-cache-poisoning/ https://github.com/BARGHEST-ngo/PoC_Bitchat1.15.0_iOS-BLEcache-poisoning https://github.com/permissionlesstech/bitchat/pull/998

Frequently Asked Questions

What is CVE-2026-51376? +

An issue in BitChat for iOS v1.15.0 allows a remote attacker to cause a denial of service via an unauthenticated MESSAGE packet into the mesh gossip cache

How do I check if I'm vulnerable to CVE-2026-51376? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.