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CVE-2025-14435

Application-Level DoS via infinite re-render loop in user profile handling

MEDIUM
6.5
CVSS Score
Published: January 16, 2026 at 11:25 AM UTC
Updated: June 17, 2026 at 08:35 AM UTC
2 products affected across 1 vendorMattermost ServerMattermost

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Mattermost versions 10.11.x <= 10.11.8, 11.1.x <= 11.1.1, 11.0.x <= 11.0.6 fail to prevent infinite re-renders on API errors which allows authenticated users to cause application-level DoS via triggering unbounded component re-render loops.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mattermost Server· Mattermost
95%
10.11.0 ≤ v < 10.11.911.0.0 ≤ v < 11.0.711.1.0 ≤ v < 11.1.2
Mattermost· Mattermost
60%
10.11.0 ≤ v ≤ 10.11.811.0.0 ≤ v ≤ 11.0.611.1.0 ≤ v ≤ 11.1.110.11.011.0.011.1.0
Vendor states this is fixed in 10.11.9 (unaffected)
Vendor states this is fixed in 11.0.7 (unaffected)
Vendor states this is fixed in 11.1.2 (unaffected)
Vendor states this is fixed in 11.2.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://mattermost.com/security-updates

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-770

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