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CVEs-PoC/2025/CVE-2025-9078.md
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2025-09-29 21:09:30 +02:00

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CVE-2025-9078

Description

Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.1, 10.9.x <= 10.9.3 fail to properly validate cache keys for link metadata which allows authenticated users to access unauthorized posts and poison link previews via hash collision attacks on FNV-1 hashing

POC

Reference

Github