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Medium

Eclipse Jetty: Cross-Request Leakage for trailers on HTTP/1.1 keep-alive connections

  • Disclosed: 22.07.2026
  • Updated: 11.10.2026 13:20

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.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.eclipse.jetty:jetty-server >= 12.0.0, < 12.0.36, >= 12.1.0, < 12.1.10 12.0.36, 12.1.10

References

CVSS score -
CVSS vector
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
Weakness (CWE)
CWE-200
Platform
Java / Kotlin (Maven)
Package
org.eclipse.jetty:jetty-server
Disclosed
22.07.2026
Updated
11.10.2026 13:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-f4v5-65jj-pcr2 - CC BY 4.0

Vulnerability history: org.eclipse.jetty:jetty-server

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (29) in the archive
Total entries
29
First → latest
10.2018 07.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 4
  • High 10
  • Medium 13
  • Low 2

Disclosures per year

Severity:
  1. Eclipse Jetty: DoS attack triggering OutOfMemory with 100-Continue requests
    High · 7.5 CVE-2024-7708 >= 10.0.7, < 10.0.23, >= 11.0.7, < 11.0.23 10.0.23, 11.0.23
  2. Eclipse Jetty: Cross-Request Leakage for trailers on HTTP/1.1 keep-alive connections this entry
    Medium CVE-2026-10051 >= 12.0.0, < 12.0.36, >= 12.1.0, < 12.1.10 12.0.36, 12.1.10
  3. The Eclipse Jetty Server Artifact has a Gzip request memory leak
    High · 7.5 CVE-2026-1605 >= 12.1.0, < 12.1.6, >= 12.0.0, < 12.0.32 12.1.6, 12.0.32
  4. **UNSUPPORTED WHEN ASSIGNED** GzipHandler causes part of request body to be seen as request body of a separate request
    High · 7.2 CVE-2024-13009 >= 9.4.0, < 9.4.57.v20241219 9.4.57.v20241219
  5. Jetty SslConnection does not release pooled ByteBuffers in case of errors
    High · 7.5 CVE-2022-2191 >= 10.0.0, < 10.0.10, >= 11.0.0, < 11.0.10 10.0.10, 11.0.10
  6. Jetty vulnerable to incorrect handling of invalid large TLS frame, exhausting CPU resources
    High · 7.5 CVE-2021-28165 >= 7.2.2, < 9.4.39, >= 10.0.0, < 10.0.2, >= 11.0.0, < 11.0.2 9.4.39, 10.0.2, 11.0.2
  7. Operation on a Resource after Expiration or Release in Jetty Server
    Critical · 9.4 CVE-2019-17638 >= 9.4.27, < 9.4.30.v20200611 9.4.30.v20200611
  8. Uncontrolled Resource Consumption in org.eclipse.jetty:jetty-server
    High · 7.5 CVE-2018-12545 >= 9.4.0, < 9.4.12.v20180830, >= 9.3.0, < 9.3.25.v20180904 9.4.12.v20180830, 9.3.25.v20180904
  9. Jetty vulnerable to exposure of sensitive information to unauthenticated remote users
    High · 7.5 CVE-2015-2080 < 9.2.9.v20150224 9.2.9.v20150224
  10. Jetty vulnerable to authorization bypass due to inconsistent HTTP request handling (HTTP Request Smuggling)
    Critical · 9.8 CVE-2017-7658 < 9.2.25.v20180606, >= 9.3.0, < 9.3.24.v20180605, >= 9.4.0, < 9.4.11.v20180605 9.2.25.v20180606, 9.3.24.v20180605, 9.4.11.v20180605
  11. Jetty vulnerable to cache poisoning due to inconsistent HTTP request handling (HTTP Request Smuggling)
    High · 7.5 CVE-2017-7656 < 9.3.24.v20180605, >= 9.4.0, < 9.4.11.v20180605 9.3.24.v20180605, 9.4.11.v20180605
  12. Jetty contains an alias issue that could allow unauthenticated remote code execution due to specially crafted request
    Critical · 9.8 CVE-2016-4800 >= 9.3.0, < 9.3.9 9.3.9
  13. Jetty vulnerable to exposure of sensitive information due to observable discrepancy
    High · 7.5 CVE-2017-9735 >= 9.4.0, < 9.4.6.v20170531, >= 9.3.0, < 9.3.20.v20170531, < 9.2.22.v20170606 9.4.6.v20170531, 9.3.20.v20170531, 9.2.22.v20170606
  14. Critical severity vulnerability that affects org.eclipse.jetty:jetty-server
    Critical · 9.8 CVE-2017-7657 < 9.2.25.v20180606, >= 9.3.0, < 9.3.24.v20180605 9.2.25.v20180606, 9.3.24.v20180605
  15. Access and integrity issue within Eclipse Jetty
    High · 8.8 CVE-2018-12538 >= 9.4.0, < 9.4.11.v20180605 9.4.11.v20180605

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