Mattermost Mattermost <11.5.4

productDE

A product tracked in the threat graph; the vulnerabilities below are known to affect it.

KEV-listed

public exploit

EPSS ≥ 10%

by severity

1critical2high0medium0low

updated 2026-10-28

vulnerabilities (9)

Related CVEs.

sort

ID	severity	EPSS	exploitable	patched	published	affected
CVE-2026-5740US	—	0.34% (27th)	—	no fix	2026-05-22	—
CVE-2026-4858US	critical9.9	0.33% (26th)	—	no fix	2026-05-21	—
CVE-2026-5308US	high7.5	0.25% (17th)	—	no fix	2026-05-22	—
CVE-2026-4646US	—	0.25% (16th)	—	no fix	2026-05-22	—
CVE-2026-5755US	—	0.24% (16th)	—	no fix	2026-05-22	—
CVE-2026-3636US	—	0.18% (8th)	—	no fix	2026-05-22	—
CVE-2026-4055US	—OT elevated	0.15% (4th)	—	no fix	2026-05-21	—
CVE-2026-3473US	high7.1	0.15% (4th)	—	no fix	2026-05-22	—
CVE-2026-28735US	—OT elevated	0.14% (3rd)	—	no fix	2026-05-22	—

The flaw types (CWEs) most of these CVEs share.

CWE-400Uncontrolled Resource Consumption2 CVEs
CWE-863Incorrect Authorization2 CVEs
CWE-1287Improper Validation of Specified Type of Input1 CVEs
CWE-200Exposure of Sensitive Information to an Unauthorized Actor1 CVEs
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')1 CVEs
CWE-639Authorization Bypass Through User-Controlled Key1 CVEs
CWE-789Memory Allocation with Excessive Size Value1 CVEs

Which sources assert this record, and when.

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