CVE-2026-6790

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Summary

CVECVE-2026-6790
StatePUBLISHED
Assignereclipse
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-14 09:16:41 UTC
Updated2026-07-14 18:35:54 UTC
DescriptionIn Eclipse Jetty, for HTTP/1, HTTP/2 and HTTP/3 requests, there is no strict check that the request authority (host and port) matches what provided in the Host header (if present). This was not enforced in earlier HTTP RFC (for example, in RFC 2616), but it is in the latest RFC (9110 and 9112). This mismatch can cause a number of problems that may be classified as vulnerabilities such as: * URI constructions (for example, for redirects -- this is typical for login pages) * Virtual host selection * Reverse proxying * Misleading logs * Etc. Given that the latest RFCs require that request authority and Host header must match, Jetty should enforce this invariant.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS: 0.001960000 probability, percentile 0.095190000 (date 2026-07-14)

Problem Types: CWE-20 | CWE-20 CWE-20

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNACVSS5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Eclipse Jetty All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Eclipse Foundation Eclipse Jetty affected 9.4.0 9.4.60 semver Not specified
CNA Eclipse Foundation Eclipse Jetty affected 10.0.0 10.0.28 semver Not specified
CNA Eclipse Foundation Eclipse Jetty affected 11.0.0 11.0.28 semver Not specified
CNA Eclipse Foundation Eclipse Jetty affected 12.0.0 12.0.34 semver Not specified
CNA Eclipse Foundation Eclipse Jetty affected 12.1.0 12.1.8 semver Not specified

References

ReferenceSourceLinkTags
gitlab.eclipse.org/security/cve-assignment/-/work_items/99 [email protected] gitlab.eclipse.org Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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