Improper Access Control Affecting github.com/mattermost/mattermost/server/platform/services/sharedchannel package, versions <9.5.7 >=9.9.0 <9.9.1
Threat Intelligence
EPSS
0.05% (16th
percentile)
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Test your applications- Snyk ID SNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTSERVERPLATFORMSERVICESSHAREDCHANNEL-7577968
- published 2 Aug 2024
- disclosed 1 Aug 2024
- credit Juho Forsén
Introduced: 1 Aug 2024
CVE-2024-41926 Open this link in a new tabHow to fix?
Upgrade github.com/mattermost/mattermost/server/platform/services/sharedchannel to version 9.5.7, 9.9.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Access Control due to the failure in validating the source of sync messages which only allow the correct remote IDs. An attacker can set arbitrary RemoteId values for synced users and claim that a user was synced from another remote by exploiting this validation flaw.