CVE-2026-7387
6 advisories.
Go/github.com/mattermost/mattermost-server CVE-2026-7387: high 8.8
Mattermost doesn't require role-management authorization when setting the scheme_admin flag on group syncable link and patch endpoints
Action: Upgrade github.com/mattermost/mattermost-server to 10.11.17 or later.
go get github.com/mattermost/mattermost-server@v11.6.1go get github.com/mattermost/mattermost-server@v11.5.5go get github.com/mattermost/mattermost-server@v10.11.17Affected
| introduced | fixed | last affected |
|---|---|---|
| 11.6.0 | 11.6.1 | - |
| 11.5.0 | 11.5.5 | - |
| 10.11.0 | 10.11.17 | - |
Fixed versions
| 11.6.1 | 11.5.5 | 10.11.17 |
Sources
- osv: GHSA-6hxm-w4hv-vgvw
- https://nvd.nist.gov/vuln/detail/CVE-2026-7387
- https://github.com/mattermost/mattermost/pull/36434
- https://github.com/mattermost/mattermost/pull/36432
- https://github.com/mattermost/mattermost/pull/36431
- https://github.com/mattermost/mattermost/pull/36423
- https://github.com/mattermost/mattermost/pull/36316
- https://github.com/mattermost/mattermost/commit/d5f29c8ebbeb04460d16d9e2635ce50deeb78428
- https://github.com/mattermost/mattermost/commit/a9e574a82633915f22071f0d7ca2b006f249ec2a
- https://github.com/mattermost/mattermost/commit/8c72083414e675c97987374395e36d1f36b4bd8a
- https://github.com/mattermost/mattermost/commit/202d125afa87fe39611686850fd82590c99ca344
- https://github.com/mattermost/mattermost/commit/1ce2484a00c9821ee19708d2c46720e4855033a9
- https://github.com/mattermost/mattermost/releases/tag/v10.11.16
- https://github.com/mattermost/mattermost/releases/tag/v11.5.5
- https://github.com/mattermost/mattermost/releases/tag/v11.6.2
- https://github.com/mattermost/mattermost/releases/tag/v11.7.0
- https://mattermost.com/security-updates
- https://github.com/mattermost/mattermost
CVE-2026-7387 · published · modified · JSON
Go/github.com/mattermost/mattermost/server/v8 CVE-2026-7387: high 8.8
Mattermost doesn't require role-management authorization when setting the scheme_admin flag on group syncable link and patch endpoints
Action: Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20260506065351-202d125afa87 or later.
go get github.com/mattermost/mattermost/server/v8@v8.0.0-20260506065351-202d125afa87Affected
| introduced | fixed | last affected |
|---|---|---|
| 8.0.0-20250731163400-5b955468ea1e | 8.0.0-20260506065351-202d125afa87 | - |
Fixed versions
| 8.0.0-20260506065351-202d125afa87 |
Sources
- osv: GHSA-6hxm-w4hv-vgvw#Go/github.com/mattermost/mattermost/server/v8
- https://nvd.nist.gov/vuln/detail/CVE-2026-7387
- https://github.com/mattermost/mattermost/pull/36434
- https://github.com/mattermost/mattermost/pull/36432
- https://github.com/mattermost/mattermost/pull/36431
- https://github.com/mattermost/mattermost/pull/36423
- https://github.com/mattermost/mattermost/pull/36316
- https://github.com/mattermost/mattermost/commit/d5f29c8ebbeb04460d16d9e2635ce50deeb78428
- https://github.com/mattermost/mattermost/commit/a9e574a82633915f22071f0d7ca2b006f249ec2a
- https://github.com/mattermost/mattermost/commit/8c72083414e675c97987374395e36d1f36b4bd8a
- https://github.com/mattermost/mattermost/commit/202d125afa87fe39611686850fd82590c99ca344
- https://github.com/mattermost/mattermost/commit/1ce2484a00c9821ee19708d2c46720e4855033a9
- https://github.com/mattermost/mattermost/releases/tag/v10.11.16
- https://github.com/mattermost/mattermost/releases/tag/v11.5.5
- https://github.com/mattermost/mattermost/releases/tag/v11.6.2
- https://github.com/mattermost/mattermost/releases/tag/v11.7.0
- https://mattermost.com/security-updates
- https://github.com/mattermost/mattermost
CVE-2026-7387 · published · modified · JSON
Go/github.com/mattermost/mattermost-server CVE-2026-7387: unknown
Mattermost doesn't require role-management authorization when setting the scheme_admin flag on group syncable link and patch endpoints in github.com/mattermost/mattermost-server
Action: Upgrade github.com/mattermost/mattermost-server to 10.11.17+incompatible or later.
go get github.com/mattermost/mattermost-server@v10.11.17+incompatiblego get github.com/mattermost/mattermost-server@v11.5.5+incompatiblego get github.com/mattermost/mattermost-server@v11.6.1+incompatibleAffected
| introduced | fixed | last affected |
|---|---|---|
| 10.11.0+incompatible | 10.11.17+incompatible | - |
| 11.5.0+incompatible | 11.5.5+incompatible | - |
| 11.6.0+incompatible | 11.6.1+incompatible | - |
Fixed versions
| 10.11.17+incompatible | 11.5.5+incompatible | 11.6.1+incompatible |
Sources
- osv: GO-2026-6280
- https://github.com/advisories/GHSA-6hxm-w4hv-vgvw
- https://nvd.nist.gov/vuln/detail/CVE-2026-7387
- https://github.com/mattermost/mattermost/commit/1ce2484a00c9821ee19708d2c46720e4855033a9
- https://github.com/mattermost/mattermost/commit/202d125afa87fe39611686850fd82590c99ca344
- https://github.com/mattermost/mattermost/commit/8c72083414e675c97987374395e36d1f36b4bd8a
- https://github.com/mattermost/mattermost/commit/a9e574a82633915f22071f0d7ca2b006f249ec2a
- https://github.com/mattermost/mattermost/commit/d5f29c8ebbeb04460d16d9e2635ce50deeb78428
- https://github.com/mattermost/mattermost/pull/36316
- https://github.com/mattermost/mattermost/pull/36423
- https://github.com/mattermost/mattermost/pull/36431
- https://github.com/mattermost/mattermost/pull/36432
- https://github.com/mattermost/mattermost/pull/36434
- https://github.com/mattermost/mattermost/releases/tag/v10.11.16
- https://github.com/mattermost/mattermost/releases/tag/v11.5.5
- https://github.com/mattermost/mattermost/releases/tag/v11.6.2
- https://github.com/mattermost/mattermost/releases/tag/v11.7.0
- https://mattermost.com/security-updates
CVE-2026-7387 · published · modified · JSON
Go/github.com/mattermost/mattermost-server/v5 CVE-2026-7387: unknown
Mattermost doesn't require role-management authorization when setting the scheme_admin flag on group syncable link and patch endpoints in github.com/mattermost/mattermost-server
Action: No fix published. Pin and monitor.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | - | - |
Fixed versions
No fixed version in the source.
Sources
- osv: GO-2026-6280#Go/github.com/mattermost/mattermost-server/v5
- https://github.com/advisories/GHSA-6hxm-w4hv-vgvw
- https://nvd.nist.gov/vuln/detail/CVE-2026-7387
- https://github.com/mattermost/mattermost/commit/1ce2484a00c9821ee19708d2c46720e4855033a9
- https://github.com/mattermost/mattermost/commit/202d125afa87fe39611686850fd82590c99ca344
- https://github.com/mattermost/mattermost/commit/8c72083414e675c97987374395e36d1f36b4bd8a
- https://github.com/mattermost/mattermost/commit/a9e574a82633915f22071f0d7ca2b006f249ec2a
- https://github.com/mattermost/mattermost/commit/d5f29c8ebbeb04460d16d9e2635ce50deeb78428
- https://github.com/mattermost/mattermost/pull/36316
- https://github.com/mattermost/mattermost/pull/36423
- https://github.com/mattermost/mattermost/pull/36431
- https://github.com/mattermost/mattermost/pull/36432
- https://github.com/mattermost/mattermost/pull/36434
- https://github.com/mattermost/mattermost/releases/tag/v10.11.16
- https://github.com/mattermost/mattermost/releases/tag/v11.5.5
- https://github.com/mattermost/mattermost/releases/tag/v11.6.2
- https://github.com/mattermost/mattermost/releases/tag/v11.7.0
- https://mattermost.com/security-updates
CVE-2026-7387 · published · modified · JSON
Go/github.com/mattermost/mattermost-server/v6 CVE-2026-7387: unknown
Mattermost doesn't require role-management authorization when setting the scheme_admin flag on group syncable link and patch endpoints in github.com/mattermost/mattermost-server
Action: No fix published. Pin and monitor.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | - | - |
Fixed versions
No fixed version in the source.
Sources
- osv: GO-2026-6280#Go/github.com/mattermost/mattermost-server/v6
- https://github.com/advisories/GHSA-6hxm-w4hv-vgvw
- https://nvd.nist.gov/vuln/detail/CVE-2026-7387
- https://github.com/mattermost/mattermost/commit/1ce2484a00c9821ee19708d2c46720e4855033a9
- https://github.com/mattermost/mattermost/commit/202d125afa87fe39611686850fd82590c99ca344
- https://github.com/mattermost/mattermost/commit/8c72083414e675c97987374395e36d1f36b4bd8a
- https://github.com/mattermost/mattermost/commit/a9e574a82633915f22071f0d7ca2b006f249ec2a
- https://github.com/mattermost/mattermost/commit/d5f29c8ebbeb04460d16d9e2635ce50deeb78428
- https://github.com/mattermost/mattermost/pull/36316
- https://github.com/mattermost/mattermost/pull/36423
- https://github.com/mattermost/mattermost/pull/36431
- https://github.com/mattermost/mattermost/pull/36432
- https://github.com/mattermost/mattermost/pull/36434
- https://github.com/mattermost/mattermost/releases/tag/v10.11.16
- https://github.com/mattermost/mattermost/releases/tag/v11.5.5
- https://github.com/mattermost/mattermost/releases/tag/v11.6.2
- https://github.com/mattermost/mattermost/releases/tag/v11.7.0
- https://mattermost.com/security-updates
CVE-2026-7387 · published · modified · JSON
Go/github.com/mattermost/mattermost/server/v8 CVE-2026-7387: unknown
Mattermost doesn't require role-management authorization when setting the scheme_admin flag on group syncable link and patch endpoints in github.com/mattermost/mattermost-server
Action: Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20260506065351-202d125afa87 or later.
go get github.com/mattermost/mattermost/server/v8@v8.0.0-20260506065351-202d125afa87Affected
| introduced | fixed | last affected |
|---|---|---|
| 8.0.0-20250731163400-5b955468ea1e | 8.0.0-20260506065351-202d125afa87 | - |
Fixed versions
| 8.0.0-20260506065351-202d125afa87 |
Sources
- osv: GO-2026-6280#Go/github.com/mattermost/mattermost/server/v8
- https://github.com/advisories/GHSA-6hxm-w4hv-vgvw
- https://nvd.nist.gov/vuln/detail/CVE-2026-7387
- https://github.com/mattermost/mattermost/commit/1ce2484a00c9821ee19708d2c46720e4855033a9
- https://github.com/mattermost/mattermost/commit/202d125afa87fe39611686850fd82590c99ca344
- https://github.com/mattermost/mattermost/commit/8c72083414e675c97987374395e36d1f36b4bd8a
- https://github.com/mattermost/mattermost/commit/a9e574a82633915f22071f0d7ca2b006f249ec2a
- https://github.com/mattermost/mattermost/commit/d5f29c8ebbeb04460d16d9e2635ce50deeb78428
- https://github.com/mattermost/mattermost/pull/36316
- https://github.com/mattermost/mattermost/pull/36423
- https://github.com/mattermost/mattermost/pull/36431
- https://github.com/mattermost/mattermost/pull/36432
- https://github.com/mattermost/mattermost/pull/36434
- https://github.com/mattermost/mattermost/releases/tag/v10.11.16
- https://github.com/mattermost/mattermost/releases/tag/v11.5.5
- https://github.com/mattermost/mattermost/releases/tag/v11.6.2
- https://github.com/mattermost/mattermost/releases/tag/v11.7.0
- https://mattermost.com/security-updates
CVE-2026-7387 · published · modified · JSON