CVE-2026-10051: Eclipse Jetty Cross-Request Leakage For Trailers On Vulnerability

Q: What is CVE-2026-10051?

CVE-2026-10051 is a security vulnerability in Eclipse Jetty involving Cross-Request Leakage for trailers on HTTP/1.1 keep-alive connections under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.

Q: Which Eclipse Jetty versions are affected?

Affected versions include releases prior to 12.0.36, 12.1.10 across affected packages: org.eclipse.jetty:jetty-server.

Q: What version fixes CVE-2026-10051?

Upgrading to 12.0.36, 12.1.10 (or the latest patched release for your respective branch) resolves the vulnerability.

Q: Is jetty-server affected?

Yes, org.eclipse.jetty:jetty-server is affected in releases prior to 12.0.36, 12.1.10. Upgrade your dependency to 12.0.36, 12.1.10 or later.

Q: What CWE is associated with CVE-2026-10051?

CVE-2026-10051 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).

Q: How can I check Maven dependencies for CVE-2026-10051?

Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.eclipse.jetty'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

MODERATE

Advisory Identifier: GHSA-f4v5-65jj-pcr2

CWE-200

Published 2026-07-22

Advisory Summary

CVE-2026-10051 is a MODERATE cross-request leakage for trailers on vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Eclipse Jetty libraries in the Maven ecosystem. The issue involves cross-request leakage for trailers on http/1.1 keep-alive connections. Remediation is available by upgrading affected packages to version 12.0.36, 12.1.10.

CVE-2026-10051 at a Glance

CVE Identifier CVE-2026-10051

GHSA Identifier GHSA-f4v5-65jj-pcr2

Severity MODERATE

CVSS v3.1 Base Score N/A

CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Affected Product Eclipse Jetty

Package Ecosystem Maven

Published Date 2026-07-22

Last Updated 2026-07-22

How to Fix CVE-2026-10051

To remediate this vulnerability, upgrade all affected Eclipse Jetty dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.eclipse.jetty:jetty-server fixed: 12.0.36

<dependency>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-server</artifactId>
    <version>12.0.36</version>
</dependency>

org.eclipse.jetty:jetty-server fixed: 12.1.10

<dependency>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-server</artifactId>
    <version>12.1.10</version>
</dependency>

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

mvn dependency:tree -Dincludes=org.eclipse.jetty

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-10051, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.eclipse.jetty

Analyze the terminal output to locate any version of Eclipse Jetty in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 12.0.36), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.eclipse.jetty command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Eclipse Jetty, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Description > FINDING — MEDIUM (HTTP/1.1 keep-alive connections with trailers) > HttpConnection._trailers Cross-Request Leakage (Never Reset Between Requests) > > Location: > jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/internal/ > HttpConnection.java:107, 1157-1161, 1170 > > Detail: > _trailers (line 107) is a connection-scoped HttpFields.Mutable field. > parsedTrailer() (line 1157) populates it when request N carries HTTP trailers. > messageComplete() (line 1170) checks "if (_trailers != null)" — evaluates true > from request N's data — and stamps it onto request N+1. > > Grep confirms: ZERO occurrences of "_trailers = null" in entire HttpConnection.java. > > Scenario: > Request N: POST /upload (trailers: X-Checksum: abc123) > Request N+1: GET /data (no trailers) > app: request.getTrailers() on N+1 → returns {X-Checksum: abc123} ← STALE > > Application logic branching on getTrailers() != null produces incorrect behavior. > Not cross-connection (same keep-alive connection only). > > More dangerous scenario: TOCTOU — trailer passes check, target swapped before use. ### Workarounds Do not rely on HTTP request trailers for security-sensitive logic, or disable persistent connections by closing the connection after each HTTP/1.1 request.

CVE-2026-10051 Affected Eclipse Jetty Versions

2 component(s)

Fixed Versions:

12.0.3612.1.10

Product / Package	Ecosystem	Affected Versions	Fixed Version
org.eclipse.jetty:jetty-server maven/org.eclipse.jetty/jetty-server	Maven	≥ 12.0.0 < 12.0.36	12.0.36
org.eclipse.jetty:jetty-server maven/org.eclipse.jetty/jetty-server	Maven	≥ 12.1.0 < 12.1.10	12.1.10

References

GitHub Advisory / Wiki ADVISORY

https://github.com/jetty/jetty.project/security/advisories/GHSA-f4v5-65jj-pcr2

NVD — CVE-2026-10051 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-10051

Eclipse Jetty Source Repository REPOSITORY

https://github.com/jetty/jetty.project/pull/15162

Eclipse Jetty Source Repository REPOSITORY

https://github.com/jetty/jetty.project/pull/15163

Security Fix Commit FIX COMMIT

https://github.com/jetty/jetty.project/commit/72206b3ea623cf7ed8729b47a83ee628ff10e8eb

Security Fix Commit FIX COMMIT

https://github.com/jetty/jetty.project/commit/dc27e8d3ab743fe27935ea2d8c41756eb6c5bae9

Eclipse Jetty Source Repository REPOSITORY

https://github.com/jetty/jetty.project

Eclipse Jetty Release RELEASE

https://github.com/jetty/jetty.project/releases/tag/jetty-12.0.36

Eclipse Jetty Release RELEASE

https://github.com/jetty/jetty.project/releases/tag/jetty-12.1.10

Eclipse Jetty Security Information SECURITY

https://gitlab.eclipse.org/security/cve-assignment/-/work_items/119

Frequently Asked Questions

What is CVE-2026-10051?

CVE-2026-10051 is a security vulnerability in Eclipse Jetty involving Cross-Request Leakage for trailers on HTTP/1.1 keep-alive connections under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.

Which Eclipse Jetty versions are affected?

Affected versions include releases prior to 12.0.36, 12.1.10 across affected packages: org.eclipse.jetty:jetty-server.

What version fixes CVE-2026-10051?

Upgrading to 12.0.36, 12.1.10 (or the latest patched release for your respective branch) resolves the vulnerability.

Is jetty-server affected?

Yes, org.eclipse.jetty:jetty-server is affected in releases prior to 12.0.36, 12.1.10. Upgrade your dependency to 12.0.36, 12.1.10 or later.

What CWE is associated with CVE-2026-10051?

CVE-2026-10051 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).

How can I check Maven dependencies for CVE-2026-10051?

Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.eclipse.jetty'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.

Machine-readable OSV JSON OSV v1.5 Schema

Normalized schema output

View Raw JSON

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-f4v5-65jj-pcr2",
  "modified" : "2026-07-22T22:56:05Z",
  "published" : "2026-07-22T22:56:05Z",
  "aliases" : [ "CVE-2026-10051" ],
  "summary" : "Eclipse Jetty: Cross-Request Leakage for trailers on HTTP/1.1 keep-alive connections",
  "details" : "### Description\n\n> FINDING — MEDIUM (HTTP/1.1 keep-alive connections with trailers)\n> HttpConnection._trailers Cross-Request Leakage (Never Reset Between Requests)\n> \n> Location:\n>   jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/internal/\n>   HttpConnection.java:107, 1157-1161, 1170\n> \n> Detail:\n>   _trailers (line 107) is a connection-scoped HttpFields.Mutable field.\n>   parsedTrailer() (line 1157) populates it when request N carries HTTP trailers.\n>   messageComplete() (line 1170) checks \"if (_trailers != null)\" — evaluates true\n>   from request N's data — and stamps it onto request N+1.\n> \n>   Grep confirms: ZERO occurrences of \"_trailers = null\" in entire HttpConnection.java.\n> \n>   Scenario:\n>     Request N:   POST /upload (trailers: X-Checksum: abc123)\n>     Request N+1: GET  /data   (no trailers)\n>     app: request.getTrailers() on N+1 → returns {X-Checksum: abc123} ← STALE\n> \n>   Application logic branching on getTrailers() != null produces incorrect behavior.\n>   Not cross-connection (same keep-alive connection only).\n> \n>   More dangerous scenario: TOCTOU — trailer passes check, target swapped before use.\n\n### Workarounds\nDo not rely on HTTP request trailers for security-sensitive logic, or disable persistent connections by closing the connection after each HTTP/1.1 request.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.eclipse.jetty:jetty-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "12.0.0"
      }, {
        "fixed" : "12.0.36"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 12.0.35"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.eclipse.jetty:jetty-server"
    },
    "ranges" : [ {
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      "events" : [ {
        "introduced" : "12.1.0"
      }, {
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      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 12.1.9"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/jetty/jetty.project/security/advisories/GHSA-f4v5-65jj-pcr2"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-10051"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jetty/jetty.project/pull/15162"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jetty/jetty.project/pull/15163"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jetty/jetty.project/commit/72206b3ea623cf7ed8729b47a83ee628ff10e8eb"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jetty/jetty.project/commit/dc27e8d3ab743fe27935ea2d8c41756eb6c5bae9"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jetty/jetty.project"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jetty/jetty.project/releases/tag/jetty-12.0.36"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/jetty/jetty.project/releases/tag/jetty-12.1.10"
  }, {
    "type" : "WEB",
    "url" : "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/119"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-22T22:56:05Z",
    "nvd_published_at" : "2026-07-14T09:16:39Z"
  }
}

CVSS V4

N/A MODERATE

Attack Vector N/A

Attack Complexity N/A

Privileges Required N/A

User Interaction N/A

Scope N/A

Confidentiality N/A

Integrity N/A

Availability N/A

Vector String

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Advisory Metadata

Source ID: GHSA-f4v5-65jj-pcr2
Schema Version: 1.4.0
Published: 2026-07-22 22:56
Last Modified: 2026-07-22 22:56
Database Record File: advisories/github-reviewed/2026/07/GHSA-f4v5-65jj-pcr2/GHSA-f4v5-65jj-pcr2.json