CVE-2025-35965GHSA-689C-XQ7X-XJWFGO-2025-3643
DoS in Mattermost Playbooks via Excessive Task Actions
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 8.0.0-20250218121836-2b5275d87136, 1.41.0
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to validate the uniqueness and quantity of task actions within the UpdateRunTaskActions GraphQL operation, which allows an attacker to create task items containing an excessive number of actions triggered by specific posts, overloading the server and leading to a denial-of-service (DoS) condition.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Mattermost Mattermost
From 10.4.0 · through 10.4.2; From 9.11.0 · through 9.11.10
- github.com/mattermost/mattermost/server/v8Go
fixed in 8.0.0-20250218121836-2b5275d87136
- github.com/mattermost/mattermost-plugin-playbooksGo
From 2.0.0
- github.com/mattermost/mattermost/server/v8Go
From 10.4.0
- github.com/mattermost/mattermost/server/v8Go
From 10.5.0
- github.com/mattermost/mattermost/server/v8Go
From 9.11.0
- github.com/mattermost/mattermost-plugin-playbooksGo
fixed in 1.41.0
- github.com/mattermost/mattermost-plugin-playbooksGo
All versions
- github.com/mattermost/mattermost-serverGo
From 9.11.0+incompatible
- github.com/mattermost/mattermost-serverGo
From 10.4.0+incompatible
- github.com/mattermost/mattermost-serverGo
From 10.5.0+incompatible
- github.com/mattermost/mattermost-server/v5Go
All versions
- github.com/mattermost/mattermost-server/v6Go
All versions
- github.com/mattermost/mattermost/server/v8Go
All versions