Medium severity6.5NVD Advisory· Published Apr 24, 2025· Updated Jun 17, 2026
CVE-2025-35965
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
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
14cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: >=9.11.0,<9.11.11
- cpe:2.3:a:mattermost:mattermost_server:10.5.0:-:*:*:*:*:*:*
- (no CPE)range: 10.4.0
- 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
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-689c-xq7x-xjwfghsaADVISORY
- mattermost.com/security-updatesnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2025-35965ghsaADVISORY
- github.com/mattermost/mattermost-plugin-playbooks/commit/bf2633dad09f5768ce2bea4b7c5ffb74050052a8ghsaWEB
- github.com/mattermost/mattermost/commit/2b5275d87136f07e016c8eca09a2f004b31afc8aghsaWEB
News mentions
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