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CVE-2026-3112

Arbitrary File Read via Advanced Logging Support Packet PUBLISHED

Description (CNA)

Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to validate Advanced Logging file target paths which allows system administrators to read arbitrary host files via malicious AdvancedLoggingJSON configuration in support packet generation. Mattermost Advisory ID: MMSA-2025-00562

Affected (CNA)

Vendor / productVersions
Mattermost / Mattermostaffected 11.4.0 through 11.4.0; affected 11.3.0 through 11.3.1; affected 11.2.0 through 11.2.3; affected 10.11.0 through 10.11.11; unaffected 11.5.0; unaffected 11.4.1; unaffected 11.3.2; unaffected 11.2.4; unaffected 10.11.12

CWE

CWE-22

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.