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Contour has Improper JWT Verification for Non-SNI Requests on Virtual Hosts with Fallback Certificate Enabled

🗓️ 02 Jul 2026 17:15:20Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 8 Views

Contour rejects combined fallback certificate and JWT provider settings to fix non-SNI bypass.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
Chainguard
CVE-2026-50149 vulnerabilities
3 Jul 202620:22
cgr
CVE
CVE-2026-50149
2 Jul 202617:15
cve
OSV
CGA-5Q9R-44PM-G2Q2
3 Jul 202615:54
osv
OSV
GHSA-G3XR-5W5J-W4Q4 Contour has Improper JWT Verification for Non-SNI Requests on Virtual Hosts with Fallback Certificate Enabled
2 Jul 202617:15
osv
OSV
MINI-8C86-XP9H-X62R
3 Jul 202613:41
osv
OSV
MINI-JXRX-QXWF-WPRR
3 Jul 202613:42
osv
OSV
MINI-P7M5-7459-R6CF
3 Jul 202613:41
osv
OSV
MINI-W5HG-56V9-G7C9
3 Jul 202613:42
osv
Positive Technologies
PT-2026-55460
2 Jul 202600:00
ptsecurity
Snyk
Improper Certificate Validation
2 Jul 202617:15
snyk
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Vulners
Node
projectcontourcontourRange1.23.01.33.5go

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02 Jul 2026 17:15Current
5.8Medium risk
Vulners AI Score5.8
EPSS0.00023
8