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CVE-2026-84650

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from...

8.8 HighFix available

CVE-2026-84650 is a high vulnerability (CVSS 8.8) in Jenkins, published September 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 41st percentile. Fixed in jenkins 2.568.3.

What does this mean?
Severity
8.8 HighCVSS 3.1, CVE List
Exploit chance
0.47%EPSS, 41st percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
2.568.3jenkins

Description

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from deserialization, allowing attackers able to submit configuration updates to specify the values of transient fields that will be deserialized, the impact depending on how those fields are used.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.47%Up 0.1 points since Sep 3, 2026
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
jenkins
Bitnami
before 2.568.3, 2.569.0 up to 2.580.0
2.568.32.580.0

What each source reports

CVE List Score used8.8

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from deserialization, allowing attackers able to submit configuration updates to specify the values of transient fields that will be deserialized, the impact depending on how those fields are used.

Record
CVE-2026-84650
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-566, CWE-502
Updated
2026-11-02
EUVDEUVD-2026-701168.8

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from deserialization, allowing attackers able to submit configuration updates to specify the values of transient fields that will be deserialized, the impact depending on how those fields are used.

Record
EUVD-2026-70116
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-6q2p-xwgj-7xw48.8

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from...

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from deserialization, allowing attackers able to submit configuration updates to specify the values of transient fields that will be deserialized, the impact depending on how those fields are used.

Record
GHSA-6q2p-xwgj-7xw4
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502
Updated
2026-11-02
NVD8.8

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from deserialization, allowing attackers able to submit configuration updates to specify the values of transient fields that will be deserialized, the impact depending on how those fields are used.

Record
CVE-2026-84650
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-502, CWE-566
Updated
2026-11-02
OSV8.8

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from deserialization, allowing attackers able to submit configuration updates to specify the values of transient fields that will be deserialized, the impact depending on how those fields are used.

Record
CVE-2026-84650
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVBIT-jenkins-2026-84650No score

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, transient fields cannot be excluded from deserialization, allowing attackers able to submit configuration updates to specify the values of transient fields that will be deserialized, the impact depending on how those fields are used.

Record
BIT-jenkins-2026-84650
Updated
2026-11-02

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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