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CVE-2018-12538

27
FAUCET Score

CVE-2018-12538 is a high-severity vulnerability affecting Eclipse Jetty versions 9.4.0 through 9.4.8, specifically when using the FileSessionDataStore for HttpSession persistence. A low-privileged attacker can exploit this flaw remotely to hijack or delete other users' HttpSessions, leading to significant confidentiality, integrity, and availability impacts. While the CVSS score is 8.8, there is no public exploit code, Metasploit module, or evidence of active exploitation, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.4.0, <= 9.4.8CPE matchmatch criteria
cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:e-series_santricity_management_plug-ins:-:*:*:*:*:*:*:*
>= 11.0, <= 11.40CPE matchmatch criteria
cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:e-series_santricity_web_services_proxy:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.69%
Probability of exploitation in next 30 days
EPSS Percentile
84.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0269 is in the 83rd percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.eclipse.jetty:jetty-serverFixed in: 9.4.11.v20180605

Vendor Advisories (2)

mavenGHSA-mwcx-532g-8pq3high

Access and integrity issue within Eclipse Jetty

Oct 16, 2018
redhatCVE-2018-12538Moderate

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

Jun 18, 2018

References

bugs.eclipse.org / bugs/show_bug.cgi
Issue TrackingVendor Advisory
lists.apache.org / thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
security.netapp.com / advisory/ntap-20181014-0001
Third Party Advisory
oracle.com / security-alerts/cpuoct2020.html
oracle.com / technetwork/security-advisory/cpuoct2019-5072832.html
securitytracker.com / id/1041194
Third Party AdvisoryVDB Entry