High severity7.5NVD Advisory· Published Jun 19, 2020· Updated Jun 17, 2026
CVE-2017-18909
CVE-2017-18909
Description
An issue was discovered in Mattermost Server before 3.9.0 when SAML is used. Encryption and signature verification are not mandatory.
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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 | < 3.8.1-0.20170504181128-4f074fed0d65 | 3.8.1-0.20170504181128-4f074fed0d65 |
Affected products
5- Mattermost/Serverdescription
- ghsa-coords3 versionspkg:golang/github.com/mattermost/mattermost-serverpkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0
< 3.8.1-0.20170504181128-4f074fed0d65+ 2 more
- (no CPE)range: < 3.8.1-0.20170504181128-4f074fed0d65
- (no CPE)range: < 0.0.20260226T182644-150000.1.149.1
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-r6j5-fqx9-7qv9ghsaADVISORY
- mattermost.com/security-updates/nvdVendor Advisory
- nvd.nist.gov/vuln/detail/CVE-2017-18909ghsaADVISORY
- github.com/mattermost/mattermost/commit/4f074fed0d653a28779ac586e418341232d43e95ghsaWEB
- mattermost.com/security-updatesghsaWEB
News mentions
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