CVE-2026-34282

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-04-21. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
49%
KEV
Not listed

Published

April 21, 2026

Last Modified

September 18, 2026

References (18)

Vendor Advisories for CVE-2026-34282(18)

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

Patch Availability(25)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuopenjdk-17-crac-source (17.0.19+10-0ubuntu1~26.04.1) @ resolute2026-09-18ubuntu
ubuntuopenjdk-25-testsupport (25.0.3+9-2~26.04.2) @ resolute2026-09-18ubuntu
ubuntuopenjdk-21-testsupport (21.0.11+10-1~22.04.2) @ jammy2026-09-18ubuntu
ubuntuopenjdk-21-crac-testsupport (21.0.11+10-0ubuntu1~26.04.1) @ resolute2026-09-18ubuntu
ubuntuopenjdk-26-testsupport (26.0.1+8-2~26.04.2) @ resolute2026-09-18ubuntu
ubuntuopenjdk-17-source (17.0.19+10-1~26.04.2) @ resolute2026-09-18ubuntu
ubuntuopenjdk-25-crac-testsupport (25.0.3+9-0ubuntu1~26.04.1) @ resolute2026-09-18ubuntu
ubuntuopenjdk-11-source (11.0.31+11-1ubuntu1~20.04.2) @ focal2026-09-18ubuntu
redhatjava-21-ibm-semeru-certified-jdk-1:21.0.11.0.10-2.el10_12026-06-01redhat
redhatjava-25-openjdk-windows2026-04-30redhat
redhatjava-21-openjdk-main-21.0.11.0.10-1.hum12026-04-29redhat
redhatjava-25-openjdk-main-25.0.3.0.9-1.hum12026-04-29redhat
redhatjava-25-openjdk-portable-main-25.0.3.0.9-1.hum12026-04-29redhat
redhatjava-21-openjdk-portable-main-21.0.11.0.10-2.hum12026-04-28redhat
redhatjava-17-openjdk-1:17.0.19.0.10-1.el92026-04-24redhat
redhatjava-21-openjdk-1:21.0.11.0.10-1.el92026-04-24redhat
redhatjava-17-openjdk-portable2026-04-23redhat
redhatjava-21-openjdk-windows2026-04-23redhat
redhatjava-21-openjdk-portable2026-04-23redhat
redhatjava-17-openjdk-windows2026-04-23redhat
redhatjava-25-openjdk-portable2026-04-23redhat
redhatjava-11-openjdk-windows2026-04-22redhat
redhatjava-11-openjdk-portable2026-04-22redhat
redhatjava-11-openjdk-1:11.0.31.0.11-1.el92026-04-22redhat
redhatjava-25-openjdk-1:25.0.3.0.9-1.el92026-04-22redhat

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

(7 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
openjdk-1111.0.12+7-2 ... 11.0.31~6ea-1 (67 versions)11.0.31+11-1~deb11u1—
openjdk-1717+35-1 ... 17~35ea-1 (85 versions)17.0.19+10-1~deb11u1—
Debian:13(2)
PackageVulnerable rangeFixed inDependents
openjdk-2121.0.10+7-1 ... 21.0.9~8ea-1 (15 versions)21.0.11+10-1~deb13u2—
openjdk-2525+36-1 ... 25~36ea-1 (17 versions)25.0.3+9-2~deb13u1—
Debian:14(2)
PackageVulnerable rangeFixed inDependents
openjdk-2121.0.10+7-1 ... 21.0.9~8ea-1 (16 versions)21.0.11+10-1—
openjdk-2525+36-1 ... 25~36ea-1 (16 versions)25.0.3+9-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
openjdk-1717.0.10+7-1 ... 17.0.9~6ea-1 (67 versions)17.0.19+10-1~deb12u2—

Weakness Classification(2)

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

Additional Vendor Advisories

(8)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 14× in last 7d / 35× 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 256 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-34282?
CVE-2026-34282 is a high vulnerability published on April 21, 2026. Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10;…
When was CVE-2026-34282 disclosed?
CVE-2026-34282 was first published in the National Vulnerability Database on April 21, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34282 actively exploited?
CVE-2026-34282 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 51.0% of all scored CVEs.
What is the CVSS score of CVE-2026-34282?
CVE-2026-34282 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-34282?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34282, 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-2026-34282

Explore →

Is Your Infrastructure Affected by CVE-2026-34282?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs