CVE-2026-93849
6.5 MEDIUMPublished 2026-10-26 · Updated 2026-10-26
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 Mattermost fail to apply allocation limits to the byte-string decode paths in its WebSocket msgpack decoder, which allows an authenticated remote attacker to cause excessive server memory allocation via a crafted binary WebSocket frame declaring a Bin32 payload length of up to 4,294,967,295 bytes.. Mattermost Advisory ID: MMSA-2026-00768
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-789
All references
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- HIGHCVE-2020-37280PoC
- MEDIUMCVE-2026-102463PoC
- MEDIUMCVE-2026-102466PoC
- HIGHCVE-2026-102504PoC
- UNSCOREDCVE-2026-102509
- UNSCOREDCVE-2026-102510
- HIGHCVE-2026-102731
- MEDIUMCVE-2026-102809PoC
Related by shared AI tags and CWE weakness class. Browse the full archive.