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Fencer Intel
critical 9.8

CVE-2017-7657 in the critical feed json

Critical severity vulnerability that affects org.eclipse.jetty:jetty-server

published 2018-06-26 8 y ago modified 2026-06-17 4 mo ago also GHSA-vgg8-72f2-qm23 , EUVD-2018-0696

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.4%
EPSS 14.4% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), transfer-encoding chunks are handled poorly. The chunk length parsing was vulnerable to an integer overflow. Thus a large chunk size could be interpreted as a smaller chunk size and content sent as chunk body could be interpreted as a pipelined request. If Jetty was deployed behind an intermediary that imposed some authorization and that intermediary allowed arbitrarily large chunks to be passed on unchanged, then this flaw could be used to bypass the authorization imposed by the intermediary as the fake pipelined request would not be interpreted by the intermediary as a request.

Patch / fix

  • maven org.eclipse.jetty:jetty-server 9.2.25.v20180606, 9.3.24.v20180605
  • The Eclipse Foundation Eclipse Jetty 9.3.24, 9.4.11
  • jetty9 Debian 14, Debian 13, Debian 12 9.2.25-1

debian advisories DEBIAN-CVE-2017-7657

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-7657 updated cvss 9.8

jetty: HTTP request smuggling

  • Red Hat Enterprise Linux 6 jetty-eclipse
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 7 jetty-io, jetty-ant, jetty-jmx, jetty-jsp, jetty-xml, jetty-http, +30 more
    affected: no fix available
  • Red Hat JBoss Fuse 6 jetty Red Hat JBoss Fuse Service Works 6 jetty
    affected: no fix planned “Will not fix”
  • Red Hat Satellite 5 nutch
    affected: no fix planned “Out of support scope”
  • Red Hat Software Collections rh-java-common-jetty-io, rh-java-common-jetty-ant, rh-java-common-jetty-jmx, rh-java-common-jetty-jsp, rh-java-common-jetty-xml, rh-java-common-jetty-http, +30 more
    affected: no fix available
  • Red Hat Data Grid 7.3.7
    fixed: vendor fix RHSA-2020:3779
  • Red Hat Fuse 7.3
    fixed: vendor fix RHSA-2019:0910

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

14.37% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.eclipse.jetty:jetty-server
<9.2.25.v20180606
>=9.3.0, <9.3.24.v20180605
9.2.25.v20180606
9.3.24.v20180605

Affected products

  • The Eclipse Foundation Eclipse Jetty

Classification

Weakness
  • CWE-444 Inconsistent Interpretation of HTTP Requests
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.