CVE-2018-21259
- Source
- https://cve.org/CVERecord?id=CVE-2018-21259
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-21259.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2018-21259
- Published
- 2020-06-19T17:15:12.850Z
- Modified
- 2026-07-08T16:40:46.785791Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in Mattermost Server before 4.10.1, 4.9.4, and 4.8.2. It allows attackers to cause a denial of service (application hang) via a malformed link in a channel.
- References
Affected packages
Git / github.com/mattermost/mattermost
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mattermost/mattermost
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedIntroducedFixed
- Database specific
{ "cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "source": "CPE_RANGE", "extracted_events": [ { "introduced": "0" }, { "fixed": "4.8.2" }, { "introduced": "4.9.0" }, { "fixed": "4.9.4" }, { "introduced": "4.10.0" }, { "fixed": "4.10.1" } ] }