CVE-2017-18912 json
Mattermost Server allows an attacker to specify a full pathname of a log file
published 2020-06-19 6 y ago modified 2026-06-17 4 mo ago also GHSA-m2ch-x2q7-2284 , GO-2026-4487 , EUVD-2017-10002
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. It allows an attacker to specify a full pathname of a log file.
Patch / fix
- go github.com/mattermost/mattermost-server 3.7.4-0.20170404171331-0b5c0794fdcb
- mattermost mattermost_server 3.6.7, 3.7.5, 3.8.2
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260226T182644-150000.1.149.1
suse advisories SUSE-SU-2026:0757-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
Exploit prediction
1.39% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost-server | <3.7.4-0.20170404171331-0b5c0794fdcb all versions |
3.7.4-0.20170404171331-0b5c0794fdcb |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/mattermost/mattermost/commit/0b5c0794fdcbb551c1233dcdfbdf5c7deb585fd6
web
-
mattermost.com
/security-updates/
vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2017-18912
advisory
-
github.com
/mattermost/mattermost
package
-
mattermost.com
/security-updates
web
-
github.com
/advisories/GHSA-m2ch-x2q7-2284
advisory
Sources
- CVE List CVE-2017-18912
- GitHub Advisory GHSA-m2ch-x2q7-2284
- NVD CVE-2017-18912
- OSV GO-2026-4487
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