CVE-2025-51846
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
CryptPad 2025.3.1 allows unbounded WebSocket frame flood. A remote, unauthenticated attacker can significantly degrade or deny service for all users of a CryptPad instance. Fixed in 2026.2.2.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| CryptPad | CryptPad | 2025.3.1 < 2026.2.2 | affected |
| CryptPad | CryptPad | 2026.2.2 | unaffected |
Weaknesses
- CWE-770: CWE-770 Allocation of Resources Without Limits or Throttling
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/cryptpad/cryptpad/pull/2239/changes/1e0c06ad8a0c5dab795f85f9730ec2693320c62e
- https://www.cve.org/CVERecord?id=CVE-2025-51846
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-119-01.json
- https://github.com/JohnPerifanis/cryptpad-cve-2025-51846-advisory/blob/main/README.md
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