CVE-2026-51376

Unauthenticated MESSAGE packet causes denial of service via mesh gossip cache in BitChat iOS

Published Aug 28, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
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

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Unauthenticated MESSAGE packet causes denial of service via mesh gossip cache in BitChat iOS
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title BitChat iOS Denial of Service via Mesh Gossip Cache
Weaknesses CWE-400
Type Values Removed Values Added
Weaknesses CWE-444
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
First Time appeared Permissionlesstech
Permissionlesstech bitchat
Vendors & Products Permissionlesstech
Permissionlesstech bitchat
Type Values Removed Values Added
Title BitChat iOS Denial of Service via Mesh Gossip Cache
Weaknesses CWE-400
Type Values Removed Values Added
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
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 1, 2026, 7:08 PM
Reserved
Jun 7, 2026, 12:00 AM
Status
Deferred
Published
Aug 28, 2026, 8:18 PM
Modified
Sep 1, 2026, 7:17 PM