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EUVD-2025-29164Published

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 …

Exact source revision recorded 7 Nov 2026 03:35:51 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2025-29164

Published

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

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Sep 15, 2025, 10:10:06 AM

dateUpdated: Sep 15, 2025, 1:57:49 PM

1 related source bulletins · separate from aliases

openSUSE-SU-2025:15564-1: govulncheck-vulndb-0.0.20250917T170349-1.1 on GA media

CVE-2025-4953 · CVE-2025-54123 · CVE-2025-54376 · CVE-2025-58058 · CVE-2025-58063 · CVE-2025-58157 · CVE-2025-58158 · CVE-2025-58430 · CVE-2025-58437 · CVE-2025-58445 · CVE-2025-58450 · CVE-2025-59358 · CVE-2025-59359 · CVE-2025-59360 · CVE-2025-59361 · CVE-2025-7445 · CVE-2025-8396 · CVE-2025-9072 · CVE-2025-9076 · CVE-2025-9078 · CVE-2025-9084

Source published
Sep 15, 2025, 10:10:06 AM (timezone not stated)
Source modified
Sep 15, 2025, 1:57:49 PM (timezone not stated)
Observed here
7 Nov 2026 03:35:51 UTC
Source terms
ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 8 Nov 22:08 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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