Medium severity4.3NVD Advisory· Published Jun 19, 2020· Updated Jun 17, 2026
CVE-2017-18872
CVE-2017-18872
Description
An issue was discovered in Mattermost Server before 4.4.3 and 4.3.3. Attackers could reconfigure an OAuth app in some cases where Mattermost is an OAuth 2.0 service provider.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mattermost/mattermost-serverGo | < 4.3.3 | 4.3.3 |
github.com/mattermost/mattermost-serverGo | >= 4.4.0-rc1, < 4.4.3 | 4.4.3 |
Affected products
5- Mattermost/Serverdescription
- ghsa-coords3 versionspkg:golang/github.com/mattermost/mattermost-serverpkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Tumbleweed
< 4.3.3+ 2 more
- (no CPE)range: < 4.3.3
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
- (no CPE)range: < 0.0.20251105T184115-1.1
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-hgrp-fgm8-56g8ghsaADVISORY
- mattermost.com/security-updates/nvdVendor Advisory
- nvd.nist.gov/vuln/detail/CVE-2017-18872ghsaADVISORY
- github.com/mattermost/mattermost/commit/753386c2b2b06233d8bd977e3db29a4fe18098cbghsaWEB
- github.com/mattermost/mattermost/commit/8f6bb1570dd234c63de5241eff9fbb268aad358cghsaWEB
- mattermost.com/security-updatesghsaWEB
News mentions
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