CVE-2026-53435

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM 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
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 19%CVSS: 8.8Exploit: Elevated riskExposed: 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(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
19%
EPSS %ILE
97%
KEV
Not listed

Published

June 10, 2026

Last Modified

July 15, 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 11× in last 7d / 74× 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 128 total refreshes for this CVE.

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

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 ↗

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 July 15, 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 19% probability of exploitation in the next 30 days, which ranks it in the top 3.0% 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).
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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