CVE-2026-28735
4 advisories.
Go/github.com/mattermost/mattermost-server CVE-2026-28735: medium 5.4
Mattermost allows authenticated users to gain access to private repositories
Action: Upgrade github.com/mattermost/mattermost-server to 10.11.15 or later.
go get github.com/mattermost/mattermost-server@v11.6.1go get github.com/mattermost/mattermost-server@v11.5.4go get github.com/mattermost/mattermost-server@v11.4.5go get github.com/mattermost/mattermost-server@v10.11.15Affected
| introduced | fixed | last affected |
|---|---|---|
| 11.6.0 | 11.6.1 | - |
| 11.5.0 | 11.5.4 | - |
| 11.4.0 | 11.4.5 | - |
| 10.11.0 | 10.11.15 | - |
Fixed versions
| 11.6.1 | 11.5.4 | 11.4.5 | 10.11.15 |
Sources
- osv: GHSA-r5vf-grcx-5vqp
- https://nvd.nist.gov/vuln/detail/CVE-2026-28735
- https://github.com/mattermost/mattermost-plugin-github/commit/6e6b740c4852cdfa136ee0ced160da832285c353
- https://github.com/mattermost/mattermost
- https://mattermost.com/security-updates
CVE-2026-28735 · published · modified · JSON
Go/github.com/mattermost/mattermost-plugin-github CVE-2026-28735: medium 5.4
Mattermost allows authenticated users to gain access to private repositories
Action: Upgrade github.com/mattermost/mattermost-plugin-github to 1.0.1-0.20260318132218-6e6b740c4852 or later.
go get github.com/mattermost/mattermost-plugin-github@v1.0.1-0.20260318132218-6e6b740c4852Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.0.1-0.20260318132218-6e6b740c4852 | - |
Fixed versions
| 1.0.1-0.20260318132218-6e6b740c4852 |
Sources
- osv: GHSA-r5vf-grcx-5vqp#Go/github.com/mattermost/mattermost-plugin-github
- https://nvd.nist.gov/vuln/detail/CVE-2026-28735
- https://github.com/mattermost/mattermost-plugin-github/commit/6e6b740c4852cdfa136ee0ced160da832285c353
- https://github.com/mattermost/mattermost
- https://mattermost.com/security-updates
CVE-2026-28735 · published · modified · JSON
Go/github.com/mattermost/mattermost-plugin-github CVE-2026-28735: unknown
Mattermost allows authenticated users to gain access to private repositories in github.com/mattermost/mattermost-plugin-github
Action: Upgrade github.com/mattermost/mattermost-plugin-github to 1.0.1-0.20260318132218-6e6b740c4852 or later.
go get github.com/mattermost/mattermost-plugin-github@v1.0.1-0.20260318132218-6e6b740c4852Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.0.1-0.20260318132218-6e6b740c4852 | - |
Fixed versions
| 1.0.1-0.20260318132218-6e6b740c4852 |
Sources
- osv: GO-2026-5839
- https://github.com/advisories/GHSA-r5vf-grcx-5vqp
- https://nvd.nist.gov/vuln/detail/CVE-2026-28735
- https://github.com/mattermost/mattermost-plugin-github/commit/6e6b740c4852cdfa136ee0ced160da832285c353
- https://mattermost.com/security-updates
CVE-2026-28735 · published · modified · JSON
Go/github.com/mattermost/mattermost-server CVE-2026-28735: unknown
Mattermost allows authenticated users to gain access to private repositories in github.com/mattermost/mattermost-plugin-github
Action: Upgrade github.com/mattermost/mattermost-server to 10.11.15+incompatible or later.
go get github.com/mattermost/mattermost-server@v10.11.15+incompatiblego get github.com/mattermost/mattermost-server@v11.4.5+incompatiblego get github.com/mattermost/mattermost-server@v11.5.4+incompatiblego get github.com/mattermost/mattermost-server@v11.6.1+incompatibleAffected
| introduced | fixed | last affected |
|---|---|---|
| 10.11.0+incompatible | 10.11.15+incompatible | - |
| 11.4.0+incompatible | 11.4.5+incompatible | - |
| 11.5.0+incompatible | 11.5.4+incompatible | - |
| 11.6.0+incompatible | 11.6.1+incompatible | - |
Fixed versions
| 10.11.15+incompatible | 11.4.5+incompatible | 11.5.4+incompatible | 11.6.1+incompatible |
Sources
- osv: GO-2026-5839#Go/github.com/mattermost/mattermost-server
- https://github.com/advisories/GHSA-r5vf-grcx-5vqp
- https://nvd.nist.gov/vuln/detail/CVE-2026-28735
- https://github.com/mattermost/mattermost-plugin-github/commit/6e6b740c4852cdfa136ee0ced160da832285c353
- https://mattermost.com/security-updates
CVE-2026-28735 · published · modified · JSON