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Fencer Vulns
high 7.5

CVE-2018-1999002 in the critical feed json

Improper Input Validation in Jenkins

published 2018-07-23 8 y ago modified 2026-06-17 4 mo ago also GHSA-qf38-f2fr-q4x9 , EUVD-2022-4954

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
86.6%
EPSS 86.6% chance of exploitation in 30 days, percentile 99.7%
public exploits
1
Exploit-DB

Summary

A arbitrary file read vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in the Stapler web framework's org/kohsuke/stapler/Stapler.java that allows attackers to send crafted HTTP requests returning the contents of any file on the Jenkins master file system that the Jenkins master has access to.

Patch / fix

  • maven org.jenkins-ci.main:jenkins-core 2.121.2, 2.132
  • jenkins Arch Linux 2.133-1

arch linux advisories AVG-738

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-2018-1999002 updated cvss 7.5

jenkins: Flaw in the Stapler web framework allows remote unauthenticated users to read arbitrary files

  • Red Hat OpenShift Enterprise 3 jenkins
    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

Timeline

  1. Published
  2. First public exploit (EDB-46453)

Exploit prediction

86.58% chance of exploitation in the next 30 days, higher than 99.7% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-46453 Jenkins Plugin Script Security 1.49/Declarative 1.3.4/Groovy 2.60 - Remote Code Execution webapps, 2019-02-25

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
maven org.jenkins-ci.main:jenkins-core
<2.121.2
>=2.122, <2.132
2.121.2
2.132

Classification

Weakness
  • CWE-20 Improper Input Validation
Technology feeds

References

Sources

Fencer Vulns 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.