Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to validate user permissions when creating Jira issues from Mattermost posts, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to via the /create-issue API endpoint by providing the post ID of an inaccessible post.. Mattermost Advisory ID: MMSA-2025-00550
Metrics
Affected Vendors & Products
References
History
Wed, 18 Feb 2026 21:45:00 +0000
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Mattermost mattermost Server
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Mattermost mattermost Server
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Fri, 13 Feb 2026 21:45:00 +0000
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Mattermost
Mattermost mattermost |
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| Vendors & Products |
Mattermost
Mattermost mattermost |
Fri, 13 Feb 2026 17:15:00 +0000
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| Metrics |
ssvc
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Fri, 13 Feb 2026 10:45:00 +0000
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| Description | Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to validate user permissions when creating Jira issues from Mattermost posts, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to via the /create-issue API endpoint by providing the post ID of an inaccessible post.. Mattermost Advisory ID: MMSA-2025-00550 | |
| Title | Insufficient Authorization in Mattermost Jira Plugin Allows Unauthorized Access to Post Attachments | |
| Weaknesses | CWE-863 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2026-02-13T17:03:30.894Z
Reserved: 2026-01-15T11:34:00.188Z
Link: CVE-2026-22892
Updated: 2026-02-13T17:03:16.680Z
Status : Analyzed
Published: 2026-02-13T11:16:10.693
Modified: 2026-02-18T21:34:16.227
Link: CVE-2026-22892
No data.