CVE-2026-53435

In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP requests afterwards. This can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3707	Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:60239
https://access.redhat.com/errata/RHSA-2026:60246
https://access.redhat.com/errata/RHSA-2026:60247
https://access.redhat.com/errata/RHSA-2026:60248
https://access.redhat.com/errata/RHSA-2026:60249
https://access.redhat.com/errata/RHSA-2026:60250
https://access.redhat.com/errata/RHSA-2026:60251
https://access.redhat.com/errata/RHSA-2026:60252
https://access.redhat.com/errata/RHSA-2026:60254
https://access.redhat.com/errata/RHSA-2026:60256
https://access.redhat.com/errata/RHSA-2026:60259
https://access.redhat.com/security/cve/CVE-2026-53435
https://bugzilla.redhat.com/show_bug.cgi?id=2487539
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53435.json

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:jenkins:jenkins:::::lts:::*
	cpe:2.3:a:jenkins:jenkins:::::-:::*

History

No history.

Information

Published : 2026-06-10 14:16

Updated : 2026-08-27 13:18

NVD link : CVE-2026-53435

Mitre link : CVE-2026-53435

CVE.ORG link : CVE-2026-53435

JSON object : View

Products Affected

jenkins

jenkins

CWE

CWE-502

Deserialization of Untrusted Data

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"ocp-tools-4/jenkins-rhel8", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ocp_tools:4.13::el8"], "vendor": "Red Hat", "product": "OpenShift Developer Tools and Services 4.13", "versions": [{"status": "unaffected", "version": "1786628681", "lessThan": "*", "versionType": "rpm"}], "packageName": "ocp-tools-4/jenkins-rhel8", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ocp_tools:4.14::el8"], "vendor": "Red Hat", "product": "OpenShift Developer Tools and Services 4.14", "versions": [{"status": "unaffected", "version": "1786533561", "lessThan": "*", "versionType": "rpm"}], "packageName": "ocp-tools-4/jenkins-rhel8", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ocp_tools:4.15::el8"], "vendor": "Red Hat", "product": "OpenShift Developer Tools and Services 4.15", "versions": [{"status": "unaffected", "version": "1786533565", "lessThan": "*", "versionType": "rpm"}], "packageName": "ocp-tools-4/jenkins-rhel8", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ocp_tools:4.16::el9"], "vendor": "Red Hat", "product": "OpenShift Developer Tools and Services 4.16", "versions": [{"status": "unaffected", "version": "1787125166", "lessThan": "*", "versionType": "rpm"}], "packageName": "ocp-tools-4/jenkins-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ocp_tools:4.17::el9"], "vendor": "Red Hat", "product": "OpenShift Developer Tools and Services 4.17", "versions": [{"status": "unaffected", "version": "1787124635", "lessThan": "*", "versionType": "rpm"}], "packageName": "ocp-tools-4/jenkins-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ocp_tools:4.18::el9"], "vendor": "Red Hat", "product": "OpenShift Developer Tools and Services 4.18", "versions": [{"status": "unaffected", "version": "1787125069", "lessThan": "*", "versionType": "rpm"}], "packageName": "ocp-tools-4/jenkins-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ocp_tools:4.19::el9"], "vendor": "Red Hat", "product": "OpenShift Developer Tools and Services 4.19", "versions": [{"status": "unaffected", "version": "1787124632", "lessThan": "*", "versionType": "rpm"}], "packageName": "ocp-tools-4/jenkins-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ocp_tools:4.20::el9"], "vendor": "Red Hat", "product": "OpenShift Developer Tools and Services 4.20", "versions": [{"status": "unaffected", "version": "1787124925", "lessThan": "*", "versionType": "rpm"}], "packageName": "ocp-tools-4/jenkins-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ocp_tools:4.21::el9"], "vendor": "Red Hat", "product": "OpenShift Developer Tools and Services 4.21", "versions": [{"status": "unaffected", "version": "1787125311", "lessThan": "*", "versionType": "rpm"}], "packageName": "ocp-tools-4/jenkins-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:ocp_tools:4.22::el9"], "vendor": "Red Hat", "product": "OpenShift Developer Tools and Services 4.22", "versions": [{"status": "unaffected", "version": "1787124779", "lessThan": "*", "versionType": "rpm"}], "packageName": "ocp-tools-4/jenkins-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}]}], "published": "2026-06-10T14:16:36.440", "references": [{"url": "https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3707", "tags": ["Vendor Advisory"], "source": "jenkinsci-cert@googlegroups.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60239", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60246", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60247", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60248", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60249", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60250", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60251", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60252", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60254", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60256", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:60259", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-53435", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487539", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53435.json", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-502"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-502"}]}], "descriptions": [{"lang": "en", "value": "In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP requests afterwards.\nThis can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller."}], "lastModified": "2026-08-27T13:18:23.727", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "648B5148-FE3B-464A-8963-DCF7ACEF84E5", "versionEndExcluding": "2.555.3"}, {"criteria": "cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "356A970F-6576-49B6-8EBA-E9770ED190A7", "versionEndExcluding": "2.568"}], "operator": "OR"}]}], "sourceIdentifier": "jenkinsci-cert@googlegroups.com"}