Eclipse Jetty up to 12.1.8 Authority input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k2.81

Summaryinfo

A vulnerability marked as critical has been reported in Eclipse Jetty up to 9.4.60/10.0.28/11.0.28/12.0.34/12.1.8. This impacts an unknown function of the component Authority. This manipulation causes input validation. This vulnerability is tracked as CVE-2026-6790. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Eclipse Jetty up to 9.4.60/10.0.28/11.0.28/12.0.34/12.1.8. It has been declared as critical. Affected by this vulnerability is an unknown code of the component Authority. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In 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.

The advisory is shared at gitlab.eclipse.org. This vulnerability is known as CVE-2026-6790 since 04/21/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/14/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-2314). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Eclipse Jetty

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/21/2026 CVE reserved
07/14/2026 +84 days Advisory disclosed
07/14/2026 +0 days VulDB entry created
07/14/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: gitlab.eclipse.org
Status: Confirmed

CVE: CVE-2026-6790 (🔒)
GCVE (CVE): GCVE-0-2026-6790
GCVE (VulDB): GCVE-100-378277
CERT Bund: WID-SEC-2026-2314 - Eclipse Jetty: Mehrere Schwachstellen

Entryinfo

Created: 07/14/2026 11:31
Updated: 07/14/2026 14:55
Changes: 07/14/2026 11:31 (52), 07/14/2026 14:55 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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