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Fencer Vulns
high 8.5

CVE-2026-57281 json

Jenkins Script Security Plugin has a script security bypass vulnerability

published 2026-06-24 4 mo ago modified 2026-10-25 14 d ago also GHSA-cfj9-2vgr-hpxp , EUVD-2026-38761

cvss
8.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

Jenkins Script Security Plugin 1402.v94c9ce464861 and earlier does not reject Groovy AST transformation annotations carrying an extensions member, allowing attackers able to run sandboxed Groovy scripts to execute code outside the sandbox if a suitable script is present on the classpath of the component that evaluates the script.

Patch / fix

  • maven org.jenkins-ci.plugins:script-security 1402.1405.vc96e74964250
  • Red Hat OpenShift Developer Tools and Services 4.12 1786628667
  • Red Hat OpenShift Developer Tools and Services 4.13 1786628681
  • Red Hat OpenShift Developer Tools and Services 4.14 1786533561
  • Red Hat OpenShift Developer Tools and Services 4.15 1786533565
  • Red Hat OpenShift Developer Tools and Services 4.16 1787125166
  • Red Hat OpenShift Developer Tools and Services 4.17 1787124635
  • Red Hat OpenShift Developer Tools and Services 4.18 1787125069
  • Red Hat OpenShift Developer Tools and Services 4.19 1787124632
  • Red Hat OpenShift Developer Tools and Services 4.20 1787124925
  • Red Hat OpenShift Developer Tools and Services 4.21 1787125311
  • Red Hat OpenShift Developer Tools and Services 4.22 1787124779

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-2026-57281 updated cvss 8.5

jenkins-script-security-plugin: Jenkins Script Security Plugin: Arbitrary code execution outside sandbox

  • Red Hat OpenShift Developer Tools and Services jenkins, jenkins-2-plugins
    affected: workaround, no fix available
  • Red Hat OpenShift Developer Tools and Services 4.12 ocp-tools-4/jenkins-rhel8 1786628667
    fixed: vendor fix RHSA-2026:60247
  • Red Hat OpenShift Developer Tools and Services 4.13 ocp-tools-4/jenkins-rhel8 1786628681
    fixed: vendor fix RHSA-2026:60249
  • Red Hat OpenShift Developer Tools and Services 4.14 ocp-tools-4/jenkins-rhel8 1786533561
    fixed: vendor fix RHSA-2026:60248
  • Red Hat OpenShift Developer Tools and Services 4.15 ocp-tools-4/jenkins-rhel8 1786533565
    fixed: vendor fix RHSA-2026:60239
  • Red Hat OpenShift Developer Tools and Services 4.16 ocp-tools-4/jenkins-rhel9 1787125166
    fixed: vendor fix RHSA-2026:60251
  • Red Hat OpenShift Developer Tools and Services 4.17 ocp-tools-4/jenkins-rhel9 1787124635
    fixed: vendor fix RHSA-2026:60246
  • Red Hat OpenShift Developer Tools and Services 4.18 ocp-tools-4/jenkins-rhel9 1787125069
    fixed: vendor fix RHSA-2026:60250
show 5 more
  • Red Hat OpenShift Developer Tools and Services 4.19 ocp-tools-4/jenkins-rhel9 1787124632
    fixed: vendor fix RHSA-2026:60252
  • Red Hat OpenShift Developer Tools and Services 4.20 ocp-tools-4/jenkins-rhel9 1787124925
    fixed: vendor fix RHSA-2026:60259
  • Red Hat OpenShift Developer Tools and Services 4.21 ocp-tools-4/jenkins-rhel9 1787125311
    fixed: vendor fix RHSA-2026:60254
  • Red Hat OpenShift Developer Tools and Services 4.22 ocp-tools-4/jenkins-rhel9 1787124779
    fixed: vendor fix RHSA-2026:60256
  • Red Hat OpenShift Developer Tools and Services 4.12 ocp-tools-4/jenkins-agent-base-rhel8 1786628706 Red Hat OpenShift Developer Tools and Services 4.13 ocp-tools-4/jenkins-agent-base-rhel8 1786628711 Red Hat OpenShift Developer Tools and Services 4.14 ocp-tools-4/jenkins-agent-base-rhel8 1786628748 Red Hat OpenShift Developer Tools and Services 4.15 ocp-tools-4/jenkins-agent-base-rhel8 1786628726 Red Hat OpenShift Developer Tools and Services 4.16 ocp-tools-4/jenkins-agent-base-rhel9 1787124634 Red Hat OpenShift Developer Tools and Services 4.17 ocp-tools-4/jenkins-agent-base-rhel9 1787124986
    +5 more products
    Red Hat OpenShift Developer Tools and Services 4.18 ocp-tools-4/jenkins-agent-base-rhel9 1787124633 Red Hat OpenShift Developer Tools and Services 4.19 ocp-tools-4/jenkins-agent-base-rhel9 1787124663 Red Hat OpenShift Developer Tools and Services 4.20 ocp-tools-4/jenkins-agent-base-rhel9 1787125493 Red Hat OpenShift Developer Tools and Services 4.21 ocp-tools-4/jenkins-agent-base-rhel9 1787125679 Red Hat OpenShift Developer Tools and Services 4.22 ocp-tools-4/jenkins-agent-base-rhel9 1787125563
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
4 mo ago

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA ADP 3.1 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.jenkins-ci.plugins:script-security
<1402.1405.vc96e74964250
1402.1405.vc96e74964250

Affected products

  • Jenkins Project Jenkins Script Security Plugin
  • Red Hat OpenShift Developer Tools and Services 4.12
  • Red Hat OpenShift Developer Tools and Services 4.13
  • Red Hat OpenShift Developer Tools and Services 4.14
  • Red Hat OpenShift Developer Tools and Services 4.15
  • Red Hat OpenShift Developer Tools and Services 4.16
  • Red Hat OpenShift Developer Tools and Services 4.17
  • Red Hat OpenShift Developer Tools and Services 4.18
  • Red Hat OpenShift Developer Tools and Services 4.19
  • Red Hat OpenShift Developer Tools and Services 4.20
  • Red Hat OpenShift Developer Tools and Services 4.21
  • Red Hat OpenShift Developer Tools and Services 4.22
  • Red Hat OpenShift Developer Tools and Services

Classification

Weakness
  • CWE-693 Protection Mechanism Failure
  • CWE-93 Improper Neutralization of CRLF Sequences
  • CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement

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.