CVE-2026-14298
- Source
- https://cve.org/CVERecord?id=CVE-2026-14298
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-14298.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-14298
- Downstream
- Published
- 2026-08-13T08:03:00Z
- Modified
- 2026-10-08T02:50:37Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Boards archive import endpoint allows resource exhaustion via zip bomb and file size limit bypass in Mattermost
- Details
-
Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to limit decompressed content size and enforce the configured maximum file size in the Boards archive import handler, which allows an authenticated user to cause memory exhaustion or unbounded disk consumption via a crafted .boardarchive file uploaded to the import endpoint.. Mattermost Advisory ID: MMSA-2026-00713
- Database specific
{ "cna_assigner": "Mattermost", "cwe_ids": [ "CWE-409" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/14xxx/CVE-2026-14298.json", "unresolved_ranges": [ { "extracted_events": [ { "introduced": "11.8.0" }, { "last_affected": "11.8.4" }, { "introduced": "11.7.0" }, { "last_affected": "11.7.7" }, { "introduced": "10.11.0" }, { "last_affected": "10.11.22" }, { "introduced": "11.9.0" }, { "last_affected": "11.9.0" } ], "source": "AFFECTED_FIELD" } ] }- References
Affected packages
Git / github.com/mattermost/mattermost
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mattermost/mattermost
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixed
- Database specific
-
Show details
{ "cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "10.11.0" }, { "fixed": "10.11.23" }, { "introduced": "11.7.0" }, { "fixed": "11.7.8" }, { "introduced": "11.8.0" }, { "fixed": "11.8.5" }, { "introduced": "11.9.0" }, { "fixed": "11.9.1" } ], "source": "CPE_RANGE" }
Affected versions
@mattermost/client@10.*
@mattermost/client@10.11.0
@mattermost/client@11.*
@mattermost/client@11.7.0
@mattermost/client@11.8.0
@mattermost/client@11.9.0
@mattermost/shared@11.*
@mattermost/shared@11.7.0
@mattermost/shared@11.8.0
@mattermost/shared@11.9.0
@mattermost/types@10.*
@mattermost/types@10.11.0
@mattermost/types@11.*
@mattermost/types@11.7.0
@mattermost/types@11.8.0
@mattermost/types@11.9.0
mattermost-redux@10.*
mattermost-redux@10.11.0
mattermost-redux@11.*
mattermost-redux@11.7.0
mattermost-redux@11.8.0
mattermost-redux@11.9.0
v10.*
v10.11.0
v10.11.0-rc3
v10.11.1
v10.11.1-rc1
v10.11.10
v10.11.11
v10.11.11-rc1
v10.11.11-rc2
v10.11.12
v10.11.13
v10.11.13-rc1
v10.11.14
v10.11.14-rc1
v10.11.15
v10.11.15-rc1
v10.11.16
v10.11.17
v10.11.18
v10.11.19
v10.11.19-rc1
v10.11.2
v10.11.2-rc1
v10.11.2-rc2
v10.11.20
v10.11.21
v10.11.22
v10.11.3
v10.11.4
v10.11.4-rc1
v10.11.4-rc2
v10.11.4-rc3
v10.11.5
v10.11.6
v10.11.7
v10.11.8
v10.11.9
v10.11.9-rc1
v11.*
v11.7.0
v11.7.1
v11.7.2
v11.7.3
v11.7.4
v11.7.5
v11.7.5-rc1
v11.7.6
v11.7.7
v11.8.0
v11.8.0-rc5
v11.8.1
v11.8.2
v11.8.3
v11.8.4
v11.9.0