CVE-2026-6343
7 advisories.
Go/github.com/mattermost/mattermost/server/v8 CVE-2026-6343: medium 4.3, EPSS 0.27%
Mattermost doesn't check public/private permissions
Action: Upgrade github.com/mattermost/mattermost/server/v8 to 10.11.14 or later.
go get github.com/mattermost/mattermost/server/v8@v11.5.2go get github.com/mattermost/mattermost/server/v8@v11.4.4go get github.com/mattermost/mattermost/server/v8@v10.11.14Affected
| introduced | fixed | last affected |
|---|---|---|
| 11.5.0 | 11.5.2 | - |
| 11.4.0 | 11.4.4 | - |
| 10.11.0 | 10.11.14 | - |
Fixed versions
| 11.5.2 | 11.4.4 | 10.11.14 |
Sources
- osv: GHSA-m79q-8qf5-v622
- https://nvd.nist.gov/vuln/detail/CVE-2026-6343
- https://github.com/mattermost/mattermost-plugin-playbooks/commit/887d9cacb61655d40f20ad9d6e35b408a127c380
- https://github.com/mattermost/mattermost
- https://mattermost.com/security-updates
CVE-2026-6343 · published · modified · JSON
Go/github.com/mattermost/mattermost-plugin-playbooks CVE-2026-6343: medium 4.3, EPSS 0.27%
Mattermost doesn't check public/private permissions
Action: Upgrade github.com/mattermost/mattermost-plugin-playbooks to 1.41.1-0.20260309184833-887d9cacb616 or later.
go get github.com/mattermost/mattermost-plugin-playbooks@v1.41.1-0.20260309184833-887d9cacb616Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.41.1-0.20260309184833-887d9cacb616 | - |
Fixed versions
| 1.41.1-0.20260309184833-887d9cacb616 |
Sources
- osv: GHSA-m79q-8qf5-v622#Go/github.com/mattermost/mattermost-plugin-playbooks
- https://nvd.nist.gov/vuln/detail/CVE-2026-6343
- https://github.com/mattermost/mattermost-plugin-playbooks/commit/887d9cacb61655d40f20ad9d6e35b408a127c380
- https://github.com/mattermost/mattermost
- https://mattermost.com/security-updates
CVE-2026-6343 · published · modified · JSON
Go/github.com/mattermost/mattermost-plugin-playbooks CVE-2026-6343: unknown, EPSS 0.27%
Mattermost doesn't check public/private permissions in github.com/mattermost/mattermost-plugin-playbooks
Action: Upgrade github.com/mattermost/mattermost-plugin-playbooks to 1.41.1-0.20260309184833-887d9cacb616 or later.
go get github.com/mattermost/mattermost-plugin-playbooks@v1.41.1-0.20260309184833-887d9cacb616Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.41.1-0.20260309184833-887d9cacb616 | - |
Fixed versions
| 1.41.1-0.20260309184833-887d9cacb616 |
Sources
- osv: GO-2026-5494
- https://github.com/advisories/GHSA-m79q-8qf5-v622
- https://nvd.nist.gov/vuln/detail/CVE-2026-6343
- https://github.com/mattermost/mattermost-plugin-playbooks/commit/887d9cacb61655d40f20ad9d6e35b408a127c380
- https://mattermost.com/security-updates
CVE-2026-6343 · published · modified · JSON
Go/github.com/mattermost/mattermost-server CVE-2026-6343: unknown, EPSS 0.27%
Mattermost doesn't check public/private permissions in github.com/mattermost/mattermost-plugin-playbooks
Action: Upgrade github.com/mattermost/mattermost-server to 10.11.14+incompatible or later.
go get github.com/mattermost/mattermost-server@v10.11.14+incompatiblego get github.com/mattermost/mattermost-server@v11.4.4+incompatiblego get github.com/mattermost/mattermost-server@v11.5.2+incompatibleAffected
| introduced | fixed | last affected |
|---|---|---|
| 10.11.0+incompatible | 10.11.14+incompatible | - |
| 11.4.0+incompatible | 11.4.4+incompatible | - |
| 11.5.0+incompatible | 11.5.2+incompatible | - |
Fixed versions
| 10.11.14+incompatible | 11.4.4+incompatible | 11.5.2+incompatible |
Sources
- osv: GO-2026-5494#Go/github.com/mattermost/mattermost-server
- https://github.com/advisories/GHSA-m79q-8qf5-v622
- https://nvd.nist.gov/vuln/detail/CVE-2026-6343
- https://github.com/mattermost/mattermost-plugin-playbooks/commit/887d9cacb61655d40f20ad9d6e35b408a127c380
- https://mattermost.com/security-updates
CVE-2026-6343 · published · modified · JSON
Go/github.com/mattermost/mattermost-server/v5 CVE-2026-6343: unknown, EPSS 0.27%
Mattermost doesn't check public/private permissions in github.com/mattermost/mattermost-plugin-playbooks
Action: No fix published. Pin and monitor.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | - | - |
Fixed versions
No fixed version in the source.
Sources
- osv: GO-2026-5494#Go/github.com/mattermost/mattermost-server/v5
- https://github.com/advisories/GHSA-m79q-8qf5-v622
- https://nvd.nist.gov/vuln/detail/CVE-2026-6343
- https://github.com/mattermost/mattermost-plugin-playbooks/commit/887d9cacb61655d40f20ad9d6e35b408a127c380
- https://mattermost.com/security-updates
CVE-2026-6343 · published · modified · JSON
Go/github.com/mattermost/mattermost-server/v6 CVE-2026-6343: unknown, EPSS 0.27%
Mattermost doesn't check public/private permissions in github.com/mattermost/mattermost-plugin-playbooks
Action: No fix published. Pin and monitor.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | - | - |
Fixed versions
No fixed version in the source.
Sources
- osv: GO-2026-5494#Go/github.com/mattermost/mattermost-server/v6
- https://github.com/advisories/GHSA-m79q-8qf5-v622
- https://nvd.nist.gov/vuln/detail/CVE-2026-6343
- https://github.com/mattermost/mattermost-plugin-playbooks/commit/887d9cacb61655d40f20ad9d6e35b408a127c380
- https://mattermost.com/security-updates
CVE-2026-6343 · published · modified · JSON
Go/github.com/mattermost/mattermost/server/v8 CVE-2026-6343: unknown, EPSS 0.27%
Mattermost doesn't check public/private permissions in github.com/mattermost/mattermost-plugin-playbooks
Action: No fix published. Pin and monitor.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | - | - |
Fixed versions
No fixed version in the source.
Sources
- osv: GO-2026-5494#Go/github.com/mattermost/mattermost/server/v8
- https://github.com/advisories/GHSA-m79q-8qf5-v622
- https://nvd.nist.gov/vuln/detail/CVE-2026-6343
- https://github.com/mattermost/mattermost-plugin-playbooks/commit/887d9cacb61655d40f20ad9d6e35b408a127c380
- https://mattermost.com/security-updates
CVE-2026-6343 · published · modified · JSON