CVE-2026-53435

HIGHPre-NVD 8.88.9▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.9 because EPSS predicts 53% probability of exploitation within the next 30 days (top 1.1% of all CVEs). CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8 retained for reference (NVD's own analysis pending). Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
8.9EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • 5,602 internet-exposed hosts are running an affected version right now
  • High exploitation likelihood — EPSS 53%
CISA-KEV: Not listedEPSS PROB: 53%CVSS: 8.8Exploit: Elevated riskExposed: 5,602

A fix is available — apply it.

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.

Live · internet exposure

5,602 internet-exposed hosts are running an affected version of CVE-2026-53435 right now.

across 88 countries (United States, China, Germany, India, Singapore)top: jenkins
See the live KEV-Exposure radar →Found passively from public internet-scan data — aggregate, host-redacted.

EchelonGraph is the only CVE feed that fuses live vulnerability intelligence with its own live internet-exposure radar — so you see not just that a CVE is exploited, but how much of the internet is exposed to it right now.

CVSS v3
8.8
EG Score
8.9(high)
EG Risk
61(Track)
EG Risk 61/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity89% × 45%
Exploitation53% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
53%
EPSS %ILE
99%
KEV
Not listed

Published

June 10, 2026

Last Modified

September 9, 2026

Advisory Details (1)

Auto-updated Jun 10, 2026
No patch confirmed yet.
generic

Jenkins Security Advisory 2026-06-10

https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3707

Vendor Advisories for CVE-2026-53435(12)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatocp-tools-4/jenkins-rhel8:17866286672026-08-26redhat
redhatocp-tools-4/jenkins-rhel9:17871253112026-08-26redhat
redhatocp-tools-4/jenkins-rhel9:17871246322026-08-26redhat
redhatocp-tools-4/jenkins-rhel8:17866286812026-08-26redhat
redhatocp-tools-4/jenkins-rhel9:17871251662026-08-26redhat
redhatocp-tools-4/jenkins-rhel9:17871249252026-08-26redhat
redhatocp-tools-4/jenkins-rhel9:17871247792026-08-26redhat
redhatocp-tools-4/jenkins-rhel8:17865335612026-08-26redhat
redhatocp-tools-4/jenkins-rhel8:17865335652026-08-26redhat
redhatocp-tools-4/jenkins-rhel9:17871246352026-08-26redhat
redhatocp-tools-4/jenkins-rhel9:17871250692026-08-26redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.jenkins-ci.main:jenkins-core2.556 ... 2.567 (12 versions)2.568—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 5× in last 7d / 34× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 228 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-16 14:08 UTCEPSS rescore
  3. 2026-09-16 05:15 UTCEPSS rescore
  4. 2026-09-14 04:17 UTCEG score recompute
  5. 2026-09-14 04:17 UTCVendor advisory
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-10 09:35 UTCEPSS rescore
  8. 2026-09-09 12:38 UTCVendor advisory
  9. 2026-09-07 12:34 UTCEG score recompute
  10. 2026-09-07 12:34 UTCVendor advisory
  11. 2026-09-06 13:47 UTCEPSS rescore
  12. 2026-09-02 14:12 UTCEPSS rescore
  13. 2026-09-01 13:54 UTCEPSS rescore
  14. 2026-09-01 04:40 UTCEPSS rescore
  15. 2026-08-31 00:19 UTCEG score recompute▲ 0.10
  16. 2026-08-31 00:19 UTCVendor advisory
  17. 2026-08-30 19:17 UTCEPSS rescore
  18. 2026-08-30 01:22 UTCEPSS rescore
  19. 2026-08-28 21:41 UTCEPSS rescore
  20. 2026-08-27 14:25 UTCEPSS rescore
  21. 2026-08-27 13:34 UTCVendor advisory
  22. 2026-08-27 13:01 UTCVendor advisory
  23. 2026-08-26 16:22 UTCEG score recompute
  24. 2026-08-26 16:22 UTCVendor advisory
  25. 2026-08-26 14:46 UTCEPSS rescore
Show 75 more
  1. 2026-08-26 12:19 UTCEG score recompute
  2. 2026-08-26 12:19 UTCVendor advisory
  3. 2026-08-25 13:49 UTCEPSS rescore
  4. 2026-08-25 00:26 UTCEG score recompute
  5. 2026-08-23 10:48 UTCEG score recompute
  6. 2026-08-23 00:19 UTCEPSS rescore
  7. 2026-08-21 23:49 UTCEPSS rescore
  8. 2026-08-21 10:47 UTCEG score recompute
  9. 2026-08-20 22:55 UTCEPSS rescore
  10. 2026-08-20 08:53 UTCEG score recompute
  11. 2026-08-19 17:04 UTCEPSS rescore
  12. 2026-08-19 14:59 UTCEG score recompute
  13. 2026-08-18 13:48 UTCEPSS rescore
  14. 2026-08-16 23:39 UTCEG score recompute
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 05:54 UTCEG score recompute
  17. 2026-08-16 02:14 UTCEPSS rescore
  18. 2026-08-15 04:01 UTCEG score recompute
  19. 2026-08-15 01:30 UTCEPSS rescore
  20. 2026-08-14 02:06 UTCEG score recompute
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-13 13:09 UTCGHSA enrichment
  23. 2026-08-12 23:55 UTCEG score recompute
  24. 2026-08-12 23:55 UTCGHSA enrichment
  25. 2026-08-12 13:51 UTCEPSS rescore
  26. 2026-08-12 10:59 UTCGHSA enrichment
  27. 2026-08-11 22:00 UTCEG score recompute
  28. 2026-08-11 22:00 UTCGHSA enrichment
  29. 2026-08-11 09:04 UTCGHSA enrichment
  30. 2026-08-10 20:07 UTCGHSA enrichment
  31. 2026-08-10 03:37 UTCGHSA enrichment
  32. 2026-08-09 14:40 UTCEG score recompute
  33. 2026-08-09 14:40 UTCGHSA enrichment
  34. 2026-08-09 13:46 UTCEPSS rescore
  35. 2026-08-09 01:44 UTCEG score recompute
  36. 2026-08-09 01:44 UTCGHSA enrichment
  37. 2026-08-08 16:37 UTCEPSS rescore
  38. 2026-08-08 12:47 UTCGHSA enrichment
  39. 2026-08-07 23:50 UTCEG score recompute
  40. 2026-08-07 23:50 UTCGHSA enrichment
  41. 2026-08-07 10:53 UTCGHSA enrichment
  42. 2026-08-06 21:56 UTCEG score recompute
  43. 2026-08-06 21:56 UTCGHSA enrichment
  44. 2026-08-06 13:47 UTCEPSS rescore
  45. 2026-08-06 08:59 UTCGHSA enrichment
  46. 2026-08-05 20:02 UTCEG score recompute
  47. 2026-08-05 20:02 UTCGHSA enrichment
  48. 2026-08-05 19:17 UTCEPSS rescore
  49. 2026-08-04 16:58 UTCEG score recompute
  50. 2026-08-04 16:58 UTCGHSA enrichment
  51. 2026-08-04 15:10 UTCEPSS rescore
  52. 2026-08-04 10:39 UTCEPSS rescore
  53. 2026-08-04 03:48 UTCGHSA enrichment
  54. 2026-08-03 14:51 UTCEG score recompute
  55. 2026-08-03 14:51 UTCGHSA enrichment
  56. 2026-08-03 10:36 UTCEPSS rescore
  57. 2026-08-03 00:39 UTCGHSA enrichment
  58. 2026-08-02 11:42 UTCEG score recompute
  59. 2026-08-02 11:42 UTCGHSA enrichment
  60. 2026-08-02 02:27 UTCEPSS rescore
  61. 2026-08-01 22:40 UTCGHSA enrichment
  62. 2026-08-01 09:43 UTCEG score recompute
  63. 2026-08-01 09:43 UTCGHSA enrichment
  64. 2026-08-01 04:16 UTCEPSS rescore
  65. 2026-07-31 13:43 UTCGHSA enrichment
  66. 2026-07-31 00:44 UTCEG score recompute
  67. 2026-07-31 00:44 UTCGHSA enrichment
  68. 2026-07-30 16:28 UTCEPSS rescore
  69. 2026-07-30 09:53 UTCEG score recompute
  70. 2026-07-30 09:53 UTCGHSA enrichment
  71. 2026-07-29 18:00 UTCGHSA enrichment
  72. 2026-07-29 05:04 UTCEG score recompute
  73. 2026-07-29 05:04 UTCGHSA enrichment
  74. 2026-07-28 15:37 UTCEPSS rescore
  75. 2026-07-28 02:33 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCAmesianX/CVE-2026-53435
    First seen Jun 12, 2026

    An offensive security researcher + an AI vs. a fresh n-day: building the first public PoC for CVE-2026-53435 in one Friday night. Raw 8h20m log inside.

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53435?
CVE-2026-53435 is a high vulnerability published on June 10, 2026. 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…
When was CVE-2026-53435 disclosed?
CVE-2026-53435 was first published in the National Vulnerability Database on June 10, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53435 actively exploited?
CVE-2026-53435 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 53% probability of exploitation in the next 30 days, which ranks it in the top 1.1% of all scored CVEs.
What is the CVSS score of CVE-2026-53435?
CVE-2026-53435 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.9.
How do I remediate CVE-2026-53435?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53435, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-53435

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