CVE-2026-34282

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source
7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 7.5Exploit: None knownExposed services: Not assessed

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
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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 (value × EchelonGraph’s weight)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation0.9% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.9%
EPSS %ILE
58th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 21, 2026

Last Modified

September 18, 2026

References (18)

15 of 18 shown · show the other 3

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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
openjdk-1111.0.12+7-2 ... 11.0.31~6ea-1 (67 versions)
  • every version up to 11.0.31+11-1~deb11u1: fixed in 11.0.31+11-1~deb11u1
—
openjdk-1717+35-1 ... 17~35ea-1 (85 versions)
  • every version up to 17.0.19+10-1~deb11u1: fixed in 17.0.19+10-1~deb11u1
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
openjdk-2121.0.10+7-1 ... 21.0.9~8ea-1 (15 versions)
  • every version up to 21.0.11+10-1~deb13u2: fixed in 21.0.11+10-1~deb13u2
—
openjdk-2525+36-1 ... 25~36ea-1 (17 versions)
  • every version up to 25.0.3+9-2~deb13u1: fixed in 25.0.3+9-2~deb13u1
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
openjdk-2121.0.10+7-1 ... 21.0.9~8ea-1 (16 versions)
  • every version up to 21.0.11+10-1: fixed in 21.0.11+10-1
—
openjdk-2525+36-1 ... 25~36ea-1 (16 versions)
  • every version up to 25.0.3+9-1: fixed in 25.0.3+9-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
openjdk-1717.0.10+7-1 ... 17.0.9~6ea-1 (67 versions)
  • every version up to 17.0.19+10-1~deb12u2: fixed in 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 11× in last 7d / 34× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 98 of 278 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 100 are merged into the row they repeat. The 180 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  2. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  3. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  4. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  5. 2026-10-12 16:12 UTCEG score recompute
  6. 2026-10-11 19:55 UTCEG score recompute
  7. 2026-10-11 17:08 UTCEG score recompute
  8. 2026-10-11 14:35 UTCEG score recompute
  9. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  12. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  13. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  14. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  15. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  16. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  17. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  18. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  20. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  21. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  22. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  23. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  24. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.6% · 49th percentile
  25. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.6% · 48th percentile
Show 73 more
  1. 2026-09-18 13:23 UTCEG score recompute
  2. 2026-09-18 13:23 UTCVendor advisory
  3. 2026-09-18 13:23 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-09-18 12:20 UTCEG score recompute
  5. 2026-09-18 12:20 UTCVendor advisory
  6. 2026-09-18 12:20 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  7. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  8. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  9. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  10. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  11. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  12. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  13. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  15. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  16. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  19. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  20. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  21. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  22. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  23. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  24. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  25. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  26. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  27. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  28. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  29. 2026-08-24 14:17 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  30. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  31. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  32. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  33. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  34. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  35. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  36. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  37. 2026-08-16 06:15 UTCEG score recompute
  38. 2026-08-16 06:15 UTCVendor advisory
  39. 2026-08-16 06:15 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  40. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  41. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  42. 2026-08-14 15:37 UTCVendor advisory
  43. 2026-08-14 15:37 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-08-14 04:27 UTCEG score recompute
  45. 2026-08-14 04:27 UTCVendor advisory
  46. 2026-08-14 04:27 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  48. 2026-08-13 08:42 UTCVendor advisory
  49. 2026-08-13 08:42 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  50. 2026-08-12 18:37 UTCEG score recompute
  51. 2026-08-12 18:37 UTCVendor advisory
  52. 2026-08-12 18:37 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  53. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  54. 2026-08-11 16:50 UTCEG score recompute
  55. 2026-08-11 16:50 UTCVendor advisory
  56. 2026-08-11 16:50 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-08-11 02:25 UTCEG score recompute
  58. 2026-08-11 02:25 UTCVendor advisory
  59. 2026-08-11 02:24 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  60. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  61. 2026-08-10 13:11 UTCVendor advisory
  62. 2026-08-10 13:11 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  63. 2026-08-10 02:00 UTCVendor advisory
  64. 2026-08-10 02:00 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  65. 2026-08-09 14:50 UTCEG score recompute
  66. 2026-08-09 14:50 UTCVendor advisory
  67. 2026-08-09 14:50 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  68. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  69. 2026-08-09 03:39 UTCEG score recompute
  70. 2026-08-09 03:39 UTCVendor advisory
  71. 2026-08-09 03:39 UTCGHSA enrichmentGHSA-hpm9-74qx-6x32 · GitHub severity HIGH · GitHub CVSS 7.5
  72. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  73. 2026-08-08 11:18 UTCVendor advisory

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-34282?
CVE-2026-34282 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-34282 published?
The CVE record for CVE-2026-34282 was published on April 21, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 18, 2026; the record at its source may have been updated since.
Is CVE-2026-34282 actively exploited?
CVE-2026-34282 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (58th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-34282?
CVE-2026-34282 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-34282?
A fix for CVE-2026-34282 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-34282 are linked in the Vendor Advisories panel on this page.

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