OpenLiteSpeed through 1.9.4 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to evade virtual host client certificate requirements over HTTP/3. Because QuicStream inherits a verifyContext() implementation that always returns true, attackers can present a non-mTLS host's SNI with a protected Host header to access protected content.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 30 Oct 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | OpenLiteSpeed through 1.9.4 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to evade virtual host client certificate requirements over HTTP/3. Because QuicStream inherits a verifyContext() implementation that always returns true, attackers can present a non-mTLS host's SNI with a protected Host header to access protected content. | |
| Title | OpenLiteSpeed through 1.9.4 mTLS Bypass via HTTP/3 SNI and Host Mismatch | |
| First Time appeared |
Litespeedtech
Litespeedtech openlitespeed |
|
| Weaknesses | CWE-295 | |
| CPEs | cpe:2.3:a:litespeedtech:openlitespeed:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Litespeedtech
Litespeedtech openlitespeed |
|
| References |
|
|
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-30T11:31:08.276Z
Reserved: 2026-10-30T10:53:29.316Z
Link: CVE-2026-119559
No data.
Status : Received
Published: 2026-10-30T12:16:43.210
Modified: 2026-10-30T12:16:43.210
Link: CVE-2026-119559
No data.
OpenCVE Enrichment
Updated: 2026-10-30T13:30:12Z
Weaknesses