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Fencer Vulns
high 7.5

CVE-2022-34174 json

Observable timing discrepancy allows determining username validity in Jenkins

published 2022-06-22 4 y ago modified 2026-09-08 2 mo ago also BIT-jenkins-2022-34174 , EUVD-2022-6009 , GHSA-9grj-j43m-mjqr

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

In Jenkins 2.355 and earlier, LTS 2.332.3 and earlier, an observable timing discrepancy on the login form allows distinguishing between login attempts with an invalid username, and login attempts with a valid username and wrong password, when using the Jenkins user database security realm.

Patch / fix

  • maven org.jenkins-ci.main:jenkins-core 2.332.4, 2.356
  • bitnami jenkins 2.355.1
  • jenkins openshift 4.9 2.361.1.1675668150-1.el8
  • jenkins-2-plugins openshift 4.9 4.9.1675668922-1.el8
  • jenkins openshift 4.10 2.361.1.1675406172-1.el8
  • jenkins-2-plugins openshift 4.10 4.10.1675407676-1.el8
  • jenkins openshift 4.8 2.361.1.1672840472-1.el8
  • jenkins-2-plugins openshift 4.8 4.8.1672842762-1.el8

red hat advisories RHSA-2023:0777RHSA-2023:0697RHSA-2023:0017

  • jenkins Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 2.346.2-r0

alpine advisories ALPINE-CVE-2022-34174

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2022-34174 updated cvss 7.5

jenkins: Observable timing discrepancy allows determining username validity

  • Red Hat OpenShift Container Platform 3.11 jenkins
    affected: no fix planned “Will not fix”
  • Red Hat OpenShift Container Platform 4.8 jenkins 2.361.1.1672840472-1.el8
    fixed: vendor fix RHSA-2023:0017
  • Red Hat OpenShift Container Platform 4.9 jenkins 2.361.1.1675668150-1.el8
    fixed: vendor fix RHSA-2023:0777
  • Red Hat OpenShift Container Platform 4.10 jenkins 2.361.1.1675406172-1.el8
    fixed: vendor fix RHSA-2023:0697
  • Red Hat OpenShift Container Platform 4.8 jenkins-2-plugins 4.8.1672842762-1.el8 Red Hat OpenShift Container Platform 4.9 jenkins-2-plugins 4.9.1675668922-1.el8 Red Hat OpenShift Container Platform 4.10 jenkins-2-plugins 4.10.1675407676-1.el8, python-sushy 4.1.5-0.20221125154417.ff95176.el8, python3-sushy 4.1.5-0.20221125154417.ff95176.el8, python3-sushy-tests 4.1.5-0.20221125154417.ff95176.el8, openshift 4.10.0-202302072053.p0.g8a6bfe4.assembly.stream.el7, openshift 4.10.0-202302072053.p0.g8a6bfe4.assembly.stream.el8, +16 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

1.63% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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
OSV 3.1 7.5 CVSS:3.1/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
>=2.334, <2.356
<2.332.4
2.356
2.332.4
bitnami jenkins
<2.355.1
2.355.1

Affected products

  • Jenkins project Jenkins

Classification

Weakness
  • CWE-203 Observable Discrepancy
  • CWE-208 Observable Timing Discrepancy
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.