Moderate severityNVD Advisory· Published Apr 24, 2025· Updated Apr 24, 2025
DoS in Mattermost Playbooks via Excessive Task Actions
CVE-2025-35965
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mattermost/mattermost/server/v8Go | < 8.0.0-20250218121836-2b5275d87136 | 8.0.0-20250218121836-2b5275d87136 |
github.com/mattermost/mattermost-plugin-playbooksGo | >= 2.0.0 | — |
github.com/mattermost/mattermost/server/v8Go | >= 10.4.0 | — |
github.com/mattermost/mattermost/server/v8Go | >= 10.5.0 | — |
github.com/mattermost/mattermost/server/v8Go | >= 9.11.0 | — |
github.com/mattermost/mattermost-plugin-playbooksGo | < 1.41.0 | 1.41.0 |
Affected products
12- osv-coords11 versionspkg:apk/chainguard/mattermost-fips-10.5pkg:apk/chainguard/mattermost-fips-10.5-compatpkg:apk/chainguard/mattermost-fips-10.6pkg:apk/chainguard/mattermost-fips-10.6-compatpkg:apk/chainguard/mattermost-fips-10.7pkg:apk/chainguard/mattermost-fips-10.7-compatpkg:apk/chainguard/mattermost-fips-9.11pkg:apk/chainguard/mattermost-fips-9.11-compatpkg:golang/github.com/mattermost/mattermost-plugin-playbookspkg:golang/github.com/mattermost/mattermost/server/v8pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Tumbleweed
< 10.5.3-r3+ 10 more
- (no CPE)range: < 10.5.3-r3
- (no CPE)range: < 10.5.3-r3
- (no CPE)range: < 10.6.2-r2
- (no CPE)range: < 10.6.2-r2
- (no CPE)range: < 10.7.1-r1
- (no CPE)range: < 10.7.1-r1
- (no CPE)range: < 9.11.12-r2
- (no CPE)range: < 9.11.12-r2
- (no CPE)range: >= 2.0.0
- (no CPE)range: < 8.0.0-20250218121836-2b5275d87136
- (no CPE)range: < 0.0.20250424T181457-1.1
- Range: 10.4.0
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-689c-xq7x-xjwfghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-35965ghsaADVISORY
- github.com/mattermost/mattermost-plugin-playbooks/commit/bf2633dad09f5768ce2bea4b7c5ffb74050052a8ghsaWEB
- github.com/mattermost/mattermost/commit/2b5275d87136f07e016c8eca09a2f004b31afc8aghsaWEB
- mattermost.com/security-updatesghsaWEB
News mentions
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