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Fencer Intel
high 8.8

CVE-2018-12538 json

Access and integrity issue within Eclipse Jetty

published 8y ago modified 4mo ago also GHSA-mwcx-532g-8pq3 , EUVD-2018-0645

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

In Eclipse Jetty versions 9.4.0 through 9.4.8, when using the optional Jetty provided FileSessionDataStore for persistent storage of HttpSession details, it is possible for a malicious user to access/hijack other HttpSessions and even delete unmatched HttpSessions present in the FileSystem's storage for the FileSessionDataStore.

Patch / fix

  • maven org.eclipse.jetty:jetty-server 9.4.11.v20180605
  • The Eclipse Foundation Eclipse Jetty 9.4.9

Is CVE-2018-12538 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2018-12538 updated cvss 5.6

jetty: HttpSessions access/hijack in the FileSystem's storage for the FileSessionDataStore.

  • Red Hat Enterprise Linux 6 jetty-eclipse Red Hat Enterprise Linux 7 jetty-io, jetty-ant, jetty-jmx, jetty-jsp, jetty-xml, jetty-http, +30 more Red Hat Fuse 7 jetty Red Hat JBoss Fuse 6 jetty Red Hat Satellite 5 jetty-project 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
    not affected: vulnerable code not present

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

2.56% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.eclipse.jetty:jetty-server
>=9.4.0, <9.4.11.v20180605
9.4.11.v20180605

Affected products

  • The Eclipse Foundation Eclipse Jetty

Classification

Weakness
  • CWE-6 J2EE Misconfiguration: Insufficient Session-ID Length
  • CWE-384 Session Fixation

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.