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CVE-2018-12538

Access and integrity issue within Eclipse Jetty

8.8 HighFix available

CVE-2018-12538 is a high vulnerability (CVSS 8.8) in Eclipse Jetty, published June 22, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.56%, the 85th percentile. Fixed in org.eclipse.jetty:jetty-server 9.4.11.v20180605.

What does this mean?
Severity
8.8 HighCVSS 3.0, NVD
Exploit chance
2.56%EPSS, 85th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists

Description

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

2.56%Up 1.1 points since Apr 14, 2021
90%50%10%1%

Affected products

Show 2 moreShow less

Affected packages

Affected packages
PackageAffectedFixed
org.eclipse.jetty:jetty-server
Maven
9.4.0 to 9.4.10.v20180503
9.4.11.v20180605
org.eclipse.jetty:jetty-server
Maven
9.4.0 up to 9.4.11.v20180605, plus listed versions
9.4.0.v201612089.4.0.v201806199.4.1.v201701209.4.1.v201806199.4.10.RC0
Show 18 moreShow less
9.4.10.RC19.4.10.v201805039.4.2.v201702209.4.2.v201806199.4.3.v201703179.4.3.v201806199.4.4.v201704149.4.4.v201806199.4.5.v201705029.4.5.v201806199.4.6.v201705319.4.6.v201806199.4.7.RC09.4.7.v201709149.4.7.v201806199.4.8.v201711219.4.8.v201806199.4.9.v20180320
9.4.11.v20180605

What each source reports

NVD Score used8.8

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.

Record
CVE-2018-12538
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness
CWE-6, CWE-384
Updated
2026-11-02
CVE ListNo score

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.

Record
CVE-2018-12538
Weakness
CWE-6
Updated
2026-11-02
EUVDEUVD-2018-0645No score

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.

Record
EUVD-2018-0645
Updated
2026-11-03
GitHub AdvisoriesGHSA-mwcx-532g-8pq38.8

Access and integrity issue within Eclipse Jetty

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.

Record
GHSA-mwcx-532g-8pq3
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-6, CWE-384
Updated
2026-11-02
OSVGHSA-mwcx-532g-8pq38.8

Access and integrity issue within Eclipse Jetty

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.

Record
GHSA-mwcx-532g-8pq3
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-384, CWE-6
Updated
2026-11-02

History

History
RecordedChangedSources
facts
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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