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Medium

Buffer not correctly recycled in Gzip Request inflation

  • Disclosed: 02.12.2020
  • Updated: 11.10.2026 12:22

Impact

If GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection and if an attacker can send a request with a body that is received entirely by not consumed by the application, then a subsequent request on the same connection will see that body prepended to it's body.

The attacker will not see any data, but may inject data into the body of the subsequent request

CVE score is 4.8 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

Workarounds

The problem can be worked around by either:

  • Disabling compressed request body inflation by GzipHandler.
  • By always fully consuming the request content before sending a response.
  • By adding a Connection: close to any response where the servlet does not fully consume request content.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.eclipse.jetty:jetty-server >= 9.4.0, < 9.4.35.v20201120 9.4.35.v20201120

References

CVSS score 4.8/10
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness (CWE)
CWE-226
Platform
Java / Kotlin (Maven)
Package
org.eclipse.jetty:jetty-server
Disclosed
02.12.2020
Updated
11.10.2026 12:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-86wm-rrjm-8wh8 - 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. 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
  3. **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
  4. 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
  5. 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
  6. Buffer not correctly recycled in Gzip Request inflation this entry
    Medium · 4.8 CVE-2020-27218 >= 9.4.0, < 9.4.35.v20201120 9.4.35.v20201120
  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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