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Security Advisories: GSA_kwCzR0hTQS05ZnB3LWM5eDctY3Yzas4AA-Ua

Mattermost allows remote actor to set arbitrary RemoteId values for synced users

Mattermost versions 9.9.x <= 9.9.0 and 9.5.x <= 9.5.6 fail to validate the source of sync messages and only allow the correct remote IDs, which allows a malicious remote to set arbitrary RemoteId values for synced users and therefore claim that a user was synced from another remote.

Permalink: https://github.com/advisories/GHSA-9fpw-c9x7-cv3j
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS05ZnB3LWM5eDctY3Yzas4AA-Ua
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Low
Classification: General
Published: about 2 months ago
Updated: 16 days ago


CVSS Score: 2.7
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

Identifiers: GHSA-9fpw-c9x7-cv3j, CVE-2024-41926
References: Blast Radius: 0.0

Affected Packages

go:github.com/mattermost/mattermost/server/v8
Dependent packages: 2
Dependent repositories: 1
Downloads:
Affected Version Ranges: = 9.9.0, >= 9.5.0, < 9.5.7
Fixed in: 9.9.1, 9.5.7
All affected versions:
All unaffected versions: