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High severity8.8NVD Advisory· Published Apr 6, 2026· Updated Aug 6, 2026

CVE-2026-3524

CVE-2026-3524

Description

Mattermost Plugin Legal Hold versions <=1.1.4 fail to halt request processing after a failed authorization check in ServeHTTP which allows an authenticated attacker to access, create, download, and delete legal hold data via crafted API requests to the plugin's endpoints. Mattermost Advisory ID: MMSA-2026-00621

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2
  • Mattermost/Legal Hold2 versions
    cpe:2.3:a:mattermost:legal_hold:*:*:*:*:*:mattermost:*:*+ 1 more
    • cpe:2.3:a:mattermost:legal_hold:*:*:*:*:*:mattermost:*:*range: <1.1.5
    • (no CPE)range: <=1.1.4

Patches

Vulnerability mechanics

References

1

News mentions

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