CVE-2026-26304
- Source
- https://cve.org/CVERecord?id=CVE-2026-26304
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-26304.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-26304
- Aliases
- Downstream
- Related
- Published
- 2026-03-16T19:53:21Z
- Modified
- 2026-08-12T03:30:26Z
- Severity
-
- 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- Permission Bypass in Playbook Run Creation
- Details
-
Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2 fail to verify run_create permission for empty playbookId, which allows team members to create unauthorized runs via the playbook run API. Mattermost Advisory ID: MMSA-2025-00542
- Database specific
{ "cna_assigner": "Mattermost", "cwe_ids": [ "CWE-863" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26304.json", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "11.3.0" }, { "last_affected": "11.3.0" }, { "introduced": "11.2.0" }, { "last_affected": "11.2.2" } ], "source": "AFFECTED_FIELD" } ] }- References
Affected packages
Git / github.com/mattermost/mattermost
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mattermost/mattermost
- Events
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "11.2.0" }, { "fixed": "11.2.3" }, { "introduced": "11.3.0" }, { "fixed": "11.3.1" } ], "source": "CPE_RANGE" }