CVE-2026-53435

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-10. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 15%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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
EG Score
8.8(high)
EPSS
96.3%
KEV
Not listed

Published

June 10, 2026

Last Modified

June 30, 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(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 30× in last 7d / 124× 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 124 total refreshes for this CVE.

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

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 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 June 30, 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 96.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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).
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

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