CVE-2017-18917 — Use of Password Hash With Insufficient Computational Effort in Mattermost Mattermost-server

CWE-916 — Use of Password Hash With Insufficient Computational EffortCWE-328 — Use of Weak Hash5 documents4 sources
Severity
7.5HIGHNVD
EPSS
0.2%
top 64.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Github.com Mattermost Mattermost-serverMattermost Server
Timeline
PublishedJun 19
Latest updateFeb 17

Description

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. Weak hashing was used for e-mail invitations, OAuth, and e-mail verification tokens.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDmattermost/mattermost_server3.6.0 — 3.6.7+2

🔴Vulnerability Details

4
OSV
Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations in github.com/mattermost/mattermost-server↗2026-02-17
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OSV
Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations↗2022-05-24
▶
GHSA
Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations↗2022-05-24
▶
CVEList
CVE-2017-18917: An issue was discovered in Mattermost Server before 3↗2020-06-19
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CVE-2017-18917 — HIGH severity | cvebase