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 (continuous uplift above 30%)
Sources: cisa-adp, epss, ghsa
Elevated
8.9EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • 1,830 internet-facing services (distinct ip:port) on record running an affected version — derived from Shodan data (© Shodan); a patched service can stay counted while its port stays open
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.2%CVSS: 8.8Exploit: Elevated riskExposed services: 1,830

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.

Internet exposure · derived from Shodan data

1,830 internet-facing services (distinct ip:port) on record running a version that maps to CVE-2026-53435, in our KEV-Exposure radar’s Shodan-derived sample.

across 66 countries (United States, China, Germany, India, Korea, Republic of)top: jenkins
See the KEV-Exposure radar →Derived from Shodan data. Shodan data is owned by Shodan, which holds its copyright (© Shodan). EchelonGraph claims no ownership of it or copyright in it. Aggregate, host-redacted.

How it counts: every 12 hours, when Shodan query credits allow, the radar runs one Shodan query per tracked product, reads up to 100 ip:port services per query, and keeps a service when its banner version matches a CISA-KEV or high-EPSS CVE; a service is dropped when neither a search nor a Shodan InternetDB port re-check has refreshed it for 21 days. A re-check that finds the port still listed by Shodan InternetDB refreshes the service without re-reading the banner, so a patched service can stay counted while its port stays open. A count is a banner-version inference over a sample, not an exploit test and not an internet-wide census, and the unit is a service, not a machine: a machine answering on two ports counts twice.

CVSS v3
8.8
EG Score
8.9HIGHhigh confidence
EG Risk
61
EG Risk 61/100

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%
EPSS PROB
2.2%
EPSS %ILE
81st
KEV
Not listed

Published

June 10, 2026

Last Modified

September 9, 2026

Advisory Details (1)

Auto-updated Jun 10, 2026
Patch available.
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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
org.jenkins-ci.main:jenkins-core2.556 ... 2.567 (12 versions)
  • every version up to 2.555.3: fixed in 2.555.3
  • 2.556 up to 2.568: fixed in 2.568
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 23× 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 245 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
  5. 2026-10-05 17:43 UTCEPSS rescore
  6. 2026-10-04 23:22 UTCEPSS rescore
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-03 09:09 UTCOSV refresh
  9. 2026-10-02 17:56 UTCEPSS rescore
  10. 2026-10-01 19:50 UTCEPSS rescore
  11. 2026-09-30 15:03 UTCEPSS rescore
  12. 2026-09-29 15:22 UTCEPSS rescore
  13. 2026-09-28 13:51 UTCEPSS rescore
  14. 2026-09-27 13:48 UTCEPSS rescore
  15. 2026-09-26 15:59 UTCEPSS rescore
  16. 2026-09-24 14:04 UTCEPSS rescore
  17. 2026-09-23 17:54 UTCEPSS rescore
  18. 2026-09-18 19:28 UTCEPSS rescore
  19. 2026-09-16 14:08 UTCEPSS rescore
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-14 04:17 UTCEG score recompute
  22. 2026-09-14 04:17 UTCVendor advisory
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-10 09:35 UTCEPSS rescore
  25. 2026-09-09 12:38 UTCVendor advisory
Show 75 more
  1. 2026-09-07 12:34 UTCEG score recompute
  2. 2026-09-07 12:34 UTCVendor advisory
  3. 2026-09-06 13:47 UTCEPSS rescore
  4. 2026-09-02 14:12 UTCEPSS rescore
  5. 2026-09-01 13:54 UTCEPSS rescore
  6. 2026-09-01 04:40 UTCEPSS rescore
  7. 2026-08-31 00:19 UTCEG score recompute▲ 0.10
  8. 2026-08-31 00:19 UTCVendor advisory
  9. 2026-08-30 19:17 UTCEPSS rescore
  10. 2026-08-30 01:22 UTCEPSS rescore
  11. 2026-08-28 21:41 UTCEPSS rescore
  12. 2026-08-27 14:25 UTCEPSS rescore
  13. 2026-08-27 13:34 UTCVendor advisory
  14. 2026-08-27 13:01 UTCVendor advisory
  15. 2026-08-26 16:22 UTCEG score recompute
  16. 2026-08-26 16:22 UTCVendor advisory
  17. 2026-08-26 14:46 UTCEPSS rescore
  18. 2026-08-26 12:19 UTCEG score recompute
  19. 2026-08-26 12:19 UTCVendor advisory
  20. 2026-08-25 13:49 UTCEPSS rescore
  21. 2026-08-25 00:26 UTCEG score recompute
  22. 2026-08-23 10:48 UTCEG score recompute
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-21 23:49 UTCEPSS rescore
  25. 2026-08-21 10:47 UTCEG score recompute
  26. 2026-08-20 22:55 UTCEPSS rescore
  27. 2026-08-20 08:53 UTCEG score recompute
  28. 2026-08-19 17:04 UTCEPSS rescore
  29. 2026-08-19 14:59 UTCEG score recompute
  30. 2026-08-18 13:48 UTCEPSS rescore
  31. 2026-08-16 23:39 UTCEG score recompute
  32. 2026-08-16 14:56 UTCEPSS rescore
  33. 2026-08-16 05:54 UTCEG score recompute
  34. 2026-08-16 02:14 UTCEPSS rescore
  35. 2026-08-15 04:01 UTCEG score recompute
  36. 2026-08-15 01:30 UTCEPSS rescore
  37. 2026-08-14 02:06 UTCEG score recompute
  38. 2026-08-13 22:00 UTCEPSS rescore
  39. 2026-08-13 13:09 UTCGHSA enrichment
  40. 2026-08-12 23:55 UTCEG score recompute
  41. 2026-08-12 23:55 UTCGHSA enrichment
  42. 2026-08-12 13:51 UTCEPSS rescore
  43. 2026-08-12 10:59 UTCGHSA enrichment
  44. 2026-08-11 22:00 UTCEG score recompute
  45. 2026-08-11 22:00 UTCGHSA enrichment
  46. 2026-08-11 09:04 UTCGHSA enrichment
  47. 2026-08-10 20:07 UTCGHSA enrichment
  48. 2026-08-10 03:37 UTCGHSA enrichment
  49. 2026-08-09 14:40 UTCEG score recompute
  50. 2026-08-09 14:40 UTCGHSA enrichment
  51. 2026-08-09 13:46 UTCEPSS rescore
  52. 2026-08-09 01:44 UTCEG score recompute
  53. 2026-08-09 01:44 UTCGHSA enrichment
  54. 2026-08-08 16:37 UTCEPSS rescore
  55. 2026-08-08 12:47 UTCGHSA enrichment
  56. 2026-08-07 23:50 UTCEG score recompute
  57. 2026-08-07 23:50 UTCGHSA enrichment
  58. 2026-08-07 10:53 UTCGHSA enrichment
  59. 2026-08-06 21:56 UTCEG score recompute
  60. 2026-08-06 21:56 UTCGHSA enrichment
  61. 2026-08-06 13:47 UTCEPSS rescore
  62. 2026-08-06 08:59 UTCGHSA enrichment
  63. 2026-08-05 20:02 UTCEG score recompute
  64. 2026-08-05 20:02 UTCGHSA enrichment
  65. 2026-08-05 19:17 UTCEPSS rescore
  66. 2026-08-04 16:58 UTCEG score recompute
  67. 2026-08-04 16:58 UTCGHSA enrichment
  68. 2026-08-04 15:10 UTCEPSS rescore
  69. 2026-08-04 10:39 UTCEPSS rescore
  70. 2026-08-04 03:48 UTCGHSA enrichment
  71. 2026-08-03 14:51 UTCEG score recompute
  72. 2026-08-03 14:51 UTCGHSA enrichment
  73. 2026-08-03 10:36 UTCEPSS rescore
  74. 2026-08-03 00:39 UTCGHSA enrichment
  75. 2026-08-02 11:42 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 product + 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 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 2.2% probability of exploitation in the next 30 days (81st percentile of EPSS-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 (HIGH).
How do I remediate CVE-2026-53435?
A fix for CVE-2026-53435 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-53435 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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

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