Bug 2499692 (CVE-2026-50149) - CVE-2026-50149 contour: Contour: JWT verification bypass allows unauthorized access via HTTPProxy misconfiguration
Summary: CVE-2026-50149 contour: Contour: JWT verification bypass allows unauthorized ...
Keywords:
Status: NEW
Alias: CVE-2026-50149
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-13 14:40 UTC by OSIDB Bzimport
Modified: 2026-07-14 15:41 UTC (History)
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Description OSIDB Bzimport 2026-07-13 14:40:48 UTC 
When an HTTPProxy is configured with both enableFallbackCertificate: true and jwtProviders, Contour does not reject the configuration. Requests from clients that do not send TLS SNI or send an unrecognized SNI bypass configured JWT verification and are proxied to upstream services without a valid token. Fixed in Contour v1.33.5. Workaround: do not enable enableFallbackCertificate on HTTPProxy resources that also define jwtProviders.
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