cve.bz

CVE-2017-18911

9.1 criticalEPSS 0.7%

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. The X.509 certificate validation can be skipped for a TLS-based e-mail server.

Severity

CVSS 3.1

9.1 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
CWE
CWE-295
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-m462-mqw4-2c8mGogithub.com/mattermost/mattermost-server<3.6.7-rc13.6.7-rc1
GHSA-m462-mqw4-2c8mGogithub.com/mattermost/mattermost-server>=3.7.0 <3.7.53.7.5
GHSA-m462-mqw4-2c8mGogithub.com/mattermost/mattermost-server>=3.8.0 <3.8.23.8.2
GO-2026-4464Gogithub.com/mattermost/mattermost-server<3.6.7-rc1+incompatible
>=3.7.0+incompatible <3.7.5+incompatible
>=3.8.0+incompatible <3.8.2+incompatible		3.6.7-rc1+incompatible, 3.7.5+incompatible, 3.8.2+incompatible

References

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