{"id":"CVE-2025-51846","title":"CryptPad 2025.3.1 allows unbounded WebSocket frame flood","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.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-770"],"vendor":"xwiki","product":"cryptpad","affected":["cryptpad >= 2025.3.1, < 2026.2.2"],"patched":["cryptpad 2026.2.2"],"published":"2026-04-30","updated":"2026-10-14","sourceUpdated":"2026-10-14T13:10:00.187","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-51846","references":[{"url":"https://github.com/JohnPerifanis/cryptpad-cve-2025-51846-advisory/blob/main/README.md","label":"9119a7d8-5eab-497f-8521-727c672e3725"},{"url":"https://github.com/cryptpad/cryptpad/pull/2239/changes/1e0c06ad8a0c5dab795f85f9730ec2693320c62e","label":"9119a7d8-5eab-497f-8521-727c672e3725"},{"url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-119-01.json","label":"9119a7d8-5eab-497f-8521-727c672e3725"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-51846","label":"9119a7d8-5eab-497f-8521-727c672e3725"}],"tags":["nvd","exploit-available"],"epss":0.00578,"epssPercentile":0.46085,"exploits":{"github":1,"githubRepos":["https://github.com/JohnPerifanis/cryptpad-cve-2025-51846-advisory"],"checkedAt":"2026-10-14T13:31:34.732Z"},"exploitAvailable":true,"ingestedAt":"2026-10-14T13:30:58.484Z","slug":"CVE-2025-51846","body":"## Overview\n\nCryptPad 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.\n\n## Affected\n\n- `cryptpad >= 2025.3.1, < 2026.2.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `cryptpad 2026.2.2`","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}