Evidence used
- No CISA KEV confirmation is currently recorded.
- The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
- EPSS is 0.31% for the current model date.
BlackTreeCVE IntelligenceEclipse Foundation · Eclipse Jetty
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Debian trixietrixie · source | jetty12 | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 8 Oct 2026 |
| Debian trixietrixie · source | jetty9 | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 8 Oct 2026 |
| Debian bookwormbookworm · source | jetty9 | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 8 Oct 2026 |
| Debian forkyforky · source | jetty12 | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 8 Oct 2026 |
| Debian forkyforky · source | jetty9 | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 8 Oct 2026 |
| Debian sidsid · source | jetty12 | Vendor fix publishedDebian records a fixed source-package version for this release. | 12.0.39-1 | Debian Security Tracker ↗Source updated 8 Oct 2026 |
| Debian sidsid · source | jetty9 | Affected, no fix publishedDebian currently tracks this release as open. | Not published in this feed | Debian Security Tracker ↗Source updated 8 Oct 2026 |
| Ubuntu 24.04 LTSnoble · standard archive | jetty9 | Under evaluationCanonical reports that the package might be affected and still needs evaluation or fixing. | Not published in this feed | Canonical Ubuntu Security ↗Source updated 7 Oct 2026 |
These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.
| Ecosystem and package | Affected range | First fixed version | Evidence |
|---|---|---|---|
| Mavenorg.eclipse.jetty:jetty-server | ECOSYSTEM: introduced 9.4.0.v20161208; last affected 9.4.58.v20250814 | Not stated | OSV record ↗aggregator derived · 10 Sep 2026 |
| Mavenorg.eclipse.jetty:jetty-server | ECOSYSTEM: introduced 10.0.0; last affected 10.0.26 | Not stated | OSV record ↗aggregator derived · 10 Sep 2026 |
| Mavenorg.eclipse.jetty:jetty-server | ECOSYSTEM: introduced 11.0.0; last affected 11.0.26 | Not stated | OSV record ↗aggregator derived · 10 Sep 2026 |
| Mavenorg.eclipse.jetty:jetty-server | ECOSYSTEM: introduced 12.0.0; fixed 12.0.35 | 12.0.35 | OSV record ↗aggregator derived · 10 Sep 2026 |
| Mavenorg.eclipse.jetty:jetty-server | ECOSYSTEM: introduced 12.1.0; fixed 12.1.9 | 12.1.9 | OSV record ↗aggregator derived · 10 Sep 2026 |
| mavenorg.eclipse.jetty:jetty-server | >= 9.4.0.v20161208, <= 9.4.58.v20250814 | Not stated | GitHub advisory ↗upstream repository advisory · 22 Jul 2026 |
| mavenorg.eclipse.jetty:jetty-server | >= 10.0.0, <= 10.0.26 | Not stated | GitHub advisory ↗upstream repository advisory · 22 Jul 2026 |
| mavenorg.eclipse.jetty:jetty-server | >= 11.0.0, <= 11.0.26 | Not stated | GitHub advisory ↗upstream repository advisory · 22 Jul 2026 |
| mavenorg.eclipse.jetty:jetty-server | >= 12.0.0, <= 12.0.34 | 12.0.35 | GitHub advisory ↗upstream repository advisory · 22 Jul 2026 |
| mavenorg.eclipse.jetty:jetty-server | >= 12.1.0, <= 12.1.8 | 12.1.9 | GitHub advisory ↗upstream repository advisory · 22 Jul 2026 |
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
The vendor explicitly identifies these products as affected by this CVE.
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Fix not verifiedIn 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.
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 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.
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
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 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.
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
CWE-20: Improper Input Validation. 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
Operational remediation based on structured source evidence.
Published 14 Jul 2026 · Last source change 14 Jul 2026, 12:20 UTC · CWE-20 · Improper Input Validation
Core structured fields are present and their contributing authorities are shown above.
No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.