CVE-2026-22545Disclosure(mattermost / mattermost_server)

LOWCVSS 3.5 · LOW

Signal is active with 2 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Mattermost versions 10.11.x <= 10.11.10 fail to validate user's authentication method when processing account auth type switch which allows an authenticated attacker to change account password without confirmation via falsely claiming a different auth provider.. Mattermost Advisory ID: MMSA-2026-00583

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0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://mattermost.com/security-updates

Weakness type (CWE)

CWE-863

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

mattermost_server

Threat summary

2 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
General: 1 classified signal
2 total mentions across 1 day

Affected systems

Vendors

mattermost

Products

mattermost_server

Deep dive

Activity timeline2 mentions / 1d

Signal classification2 categories

Disclosure

150.0%

General

150.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

CVE@CVEnew208d
General
CVE-2026-22545 Mattermost versions 10.11.x <= 10.11.10 fail to validate user's authentication method when processing account auth type switch which allows an authenticated attacker … https://www.cve.org/CVERecord?id=CVE-2026-22545
Post summary
The text provides a brief CVE record summary for CVE‑2026‑22545, noting an authentication method validation flaw in Mattermost 10.11.x, but contains no proof‑of‑concept, exploit details, patch information, or evidence of active exploitation.
0001083
56.7K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds207d
Disclosure
CVE-2026-22545 Authentication Bypass Vulnerability in Mattermost 10.11.x Enabling Unauthorized Password Change https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-22545
Post summary
The text announces an authentication bypass vulnerability (CVE-2026-22545) in Mattermost 10.11.x that permits unauthorized password changes, but does not provide PoC, exploit code, or other advanced details.
0000075
4.0K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	mattermost	mattermost_server	-	-	-

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