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Critical

Deserialization of Untrusted Data in Jenkins

  • Disclosed: 13.05.2022
  • Updated: 11.10.2026 12:22

CISA confirms exploitation of this vulnerability in real attacks. Prioritise checking whether your application is affected. CISA KEV · CC0 1.0

Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an unauthenticated remote code execution. An unauthenticated remote code execution vulnerability allowed attackers to transfer a serialized Java SignedObject object to the Jenkins CLI, that would be deserialized using a new ObjectInputStream, bypassing the existing blacklist-based protection mechanism. We're fixing this issue by adding SignedObject to the blacklist. We're also backporting the new HTTP CLI protocol from Jenkins 2.54 to LTS 2.46.2, and deprecating the remoting-based (i.e. Java serialization) CLI protocol, disabling it by default.

Affected software

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PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.jenkins-ci.main:jenkins-core >= 2.50, < 2.57, < 2.46.2 2.57, 2.46.2

References

CVSS score 9.8/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H
Weakness (CWE)
CWE-502
Platform
Java / Kotlin (Maven)
Package
org.jenkins-ci.main:jenkins-core
Disclosed
13.05.2022
Updated
11.10.2026 12:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-26wc-3wqp-g3rp - CC BY 4.0

Vulnerability history: org.jenkins-ci.main:jenkins-core

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (259) in the archive
Total entries
259
First → latest
01.2022 06.2026
Without a fix
1
Exploited in attacks
4

Severity breakdown

  • Critical 19
  • High 62
  • Medium 158
  • Low 20

Disclosures per year

Severity:
  1. Deserialization of Untrusted Data in Jenkins this entry
    Critical · 9.8 Exploited in attacks CVE-2017-1000353 >= 2.50, < 2.57, < 2.46.2 2.57, 2.46.2
  2. Jenkins arbitrary type deserialization from attacker-controlled config.xml allows remote code execution and user impersonation
    High · 8.8 CVE-2026-53435 < 2.555.3, >= 2.556, < 2.568 2.555.3, 2.568
  3. Jenkins: Stored XSS vulnerability in node offline cause description
    High · 8.0 CVE-2026-53441 >= 2.483, < 2.568 2.568
  4. Jenkins has a link following vulnerability allows arbitrary file creation
    High · 8.8 CVE-2026-33001 < 2.555 2.555
  5. Jenkins has a DNS rebinding vulnerability in WebSocket CLI origin validation
    High · 7.5 CVE-2026-33002 >= 2.442, < 2.555 2.555
  6. Jenkins has a stored XSS vulnerability in node offline cause description
    High · 8.0 CVE-2026-27099 >= 2.542, < 2.551, >= 2.483, < 2.541.2 2.551, 2.541.2
  7. Jenkins has a Denial of service vulnerability in HTTP-based CLI
    High · 7.5 CVE-2025-67635 >= 2.529, < 2.541, < 2.528.3 2.541, 2.528.3
  8. Jenkins Remoting library arbitrary file read vulnerability
    High · 9.0 CVE-2024-43044 < 2.452.4, >= 2.460, < 2.462.1, >= 2.470, < 2.471 2.452.4, 2.462.1, 2.471
  9. Arbitrary file read vulnerability through the Jenkins CLI can lead to RCE
    Critical · 9.8 Exploited in attacks CVE-2024-23897 >= 1.606, < 2.426.3, >= 2.427, < 2.440.1, >= 2.441, < 2.442 2.426.3, 2.440.1, 2.442
  10. Cross-site WebSocket hijacking vulnerability in the Jenkins CLI
    High · 8.8 CVE-2024-23898 >= 2.217, < 2.426.3, >= 2.427, < 2.442, = 2.441 2.426.3, 2.442
  11. Jenkins temporary plugin file created with insecure permissions
    High · 7.0 CVE-2023-43496 >= 2.50, < 2.414.2, >= 2.415, < 2.424 2.414.2, 2.424
  12. Jenkins Cross-site Scripting vulnerability
    High · 8.0 CVE-2023-43495 >= 2.50, < 2.414.2, >= 2.415, < 2.424 2.414.2, 2.424
  13. Jenkins Stored Cross-site Scripting vulnerability
    High · 8.0 CVE-2023-39151 >= 2.402, < 2.414.1, < 2.401.3, >= 2.415, < 2.416 2.414.1, 2.401.3, 2.416
  14. Jenkins CSRF protection bypass vulnerability
    High · 8.0 CVE-2023-35141 < 2.400 2.400
  15. Cross-site Scripting vulnerability in Jenkins
    High · 8.8 CVE-2023-27898 >= 2.376, < 2.394, < 2.375.4 2.394, 2.375.4
  16. Incorrect Authorization in Jenkins Core
    High · 7.0 CVE-2023-27899 >= 2.376, < 2.387.1, < 2.375.4, >= 2.388, < 2.394 2.387.1, 2.375.4, 2.394
  17. Denial of service in Jenkins Core
    High · 7.5 CVE-2023-27901 >= 2.388, < 2.394, < 2.375.4, >= 2.376, < 2.387.1 2.394, 2.375.4, 2.387.1
  18. Jenkins vulnerable to stored cross site scripting in the I:helpIcon component
    High · 8.0 CVE-2022-41224 >= 2.367, < 2.370 2.370
  19. Cross-site Scripting vulnerability in Jenkins
    High · 8.0 CVE-2022-34170 >= 2.350, < 2.356, >= 2.320, < 2.332.4, >= 2.346, < 2.346.1 2.356, 2.332.4, 2.346.1
  20. Unauthorized view fragment access in Jenkins
    High · 7.5 CVE-2022-34175 >= 2.335, < 2.356 2.356
  21. Cross-site Scripting vulnerability in Jenkins
    High · 8.0 CVE-2022-34173 >= 2.340, < 2.356 2.356
  22. Cross-site Scripting vulnerability in Jenkins
    High · 8.0 CVE-2022-34172 >= 2.340, < 2.356, >= 2.332, < 2.332.4 2.356, 2.332.4
  23. Cross-site Scripting vulnerability in Jenkins
    High · 8.0 CVE-2022-34171 >= 2.350, < 2.356, >= 2.346, < 2.346.1, < 2.332.4 2.356, 2.346.1, 2.332.4
  24. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21686 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  25. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21685 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  26. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21689 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  27. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21690 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  28. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21692 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  29. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21693 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  30. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21694 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  31. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21688 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  32. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21691 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  33. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21687 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  34. Agent-to-controller access control allowed writing to sensitive directory used by Jenkins Pipeline: Shared Groovy Libraries Plugin
    High · 8.8 CVE-2021-21696 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  35. Agent-to-controller access control allows reading/writing most content of build directories in Jenkins
    Critical · 9.1 CVE-2021-21697 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  36. Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins
    Critical · 9.0 CVE-2021-21695 < 2.303.3, >= 2.304, < 2.319 2.303.3, 2.319
  37. Session fixation vulnerability in Jenkins
    High · 7.5 CVE-2021-21671 >= 2.292, < 2.300, < 2.289.2 2.300, 2.289.2
  38. Path traversal vulnerability in Jenkins agent names
    High · 8.0 CVE-2021-21605 < 2.263.2, >= 2.264, < 2.275 2.263.2, 2.275
  39. Improper handling of REST API XML deserialization errors in Jenkins
    High · 8.0 CVE-2021-21604 < 2.263.2, >= 2.264, < 2.275 2.263.2, 2.275
  40. Jenkins Cross-site Scripting vulnerability in project naming strategy
    High · 8.0 CVE-2020-2230 < 2.235.4, >= 2.236, < 2.252 2.235.4, 2.252
  41. Jenkins Cross-Site Scripting vulnerability in help icons
    High · 8.0 CVE-2020-2229 < 2.235.4, >= 2.236, < 2.252 2.235.4, 2.252
  42. Stored XSS vulnerability in Jenkins 'keep forever' badge icon
    High · 8.0 CVE-2020-2222 < 2.235.2, >= 2.236, < 2.245 2.235.2, 2.245
  43. Stored XSS vulnerability in Jenkins upstream cause
    High · 8.0 CVE-2020-2221 < 2.235.2, >= 2.236, < 2.245 2.235.2, 2.245
  44. Stored XSS vulnerability in Jenkins job build time trend
    High · 8.0 CVE-2020-2220 < 2.235.2, >= 2.236, < 2.245 2.235.2, 2.245
  45. Stored XSS vulnerability in Jenkins console links
    High · 8.0 CVE-2020-2223 < 2.235.2, >= 2.236, < 2.245 2.235.2, 2.245
  46. Cross-Site Request Forgery in Jenkins
    High · 8.8 CVE-2020-2160 < 2.204.6, >= 2.205, < 2.228 2.204.6, 2.228
  47. Inbound TCP Agent Protocol/3 authentication bypass in Jenkins
    High · 8.6 CVE-2020-2099 < 2.204.2, >= 2.205, < 2.214 2.204.2, 2.214
  48. XML external entity (XXE) vulnerability in Jenkins
    High · 7.5 CVE-2015-1811 >= 1.597, < 1.600, < 1.596.1 1.600, 1.596.1
  49. XML external entity (XXE) vulnerability in Jenkins
    High · 7.5 CVE-2015-1809 >= 1.597, < 1.600, < 1.596.1 1.600, 1.596.1
  50. Cross-Site Request Forgery in Jenkins
    High · 8.8 CVE-2019-10384 < 2.176.3, >= 2.177, < 2.192 2.176.3, 2.192
  51. Cross-Site Request Forgery in Jenkins
    High · 7.5 CVE-2019-10353 < 2.176.2, >= 2.177, < 2.186 2.176.2, 2.186
  52. Exposure of Sensitive Information to an Unauthorized Actor in Jenkins
    Critical · 9.8 CVE-2017-1000362 >= 1.498, < 2.32.2, >= 2.40, < 2.44 2.32.2, 2.44
  53. Jenkins allows Execution of Code by Opening a JRMP Listener
    Critical · 9.8 CVE-2016-0788 >= 1.643, < 1.650, < 1.642.2 1.650, 1.642.2
  54. Jenkins allows Deserialization of Untrusted Data via an XML File
    High · 8.8 CVE-2016-0792 >= 1.643, < 1.650, < 1.642.2 1.650, 1.642.2
  55. Exposure of Sensitive Information in Jenkins Core
    Critical · 9.8 CVE-2016-0791 < 1.650 1.650
  56. Jenkins affected by Open Redirect Vulnerability
    High · 7.4 CVE-2016-3726 >= 1.652, < 2.3, < 1.651.2 2.3, 1.651.2
  57. Race Condition in Jenkins
    High · 8.1 CVE-2017-1000503 >= 2.81, < 2.89.2, >= 2.90, < 2.95 2.89.2, 2.95
  58. Cross-Site Request Forgery in Jenkins
    High · 8.8 CVE-2017-1000356 >= 2.50, < 2.57, < 2.46.2 2.57, 2.46.2
  59. Improper Authentication in Jenkins
    High · 8.8 CVE-2017-1000354 >= 2.50, < 2.57, < 2.46.2 2.57, 2.46.2
  60. Cross-Site Request Forgery in Jenkins
    High · 8.1 CVE-2017-1000504 >= 2.81, < 2.89.2, >= 2.90, < 2.95 2.89.2, 2.95
  61. Exposure of Sensitive Information to an Unauthorized Actor in Jenkins
    High · 7.8 CVE-2018-1000410 < 2.138.2, >= 2.140, < 2.146 2.138.2, 2.146
Show more (20) Showing 61 of 81

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