cve.bz

CVE-2018-21246

9.8 criticalEPSS 2.7%

Critical (9.8) in caddyserver caddy. EPSS 2.7% chance of exploitation in the next 30 days. Fixed in github.com/caddyserver/caddy 0.10.13.

Caddy before 0.10.13 mishandles TLS client authentication, as demonstrated by an authentication bypass caused by the lack of the StrictHostMatching mode.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.7% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-31)
CWE
CWE-287
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-gr7w-x2jp-3xgwGogithub.com/caddyserver/caddy<0.10.130.10.13
GO-2020-0043Gogithub.com/mholt/caddy<0.10.130.10.13

References

Check your stackJSON