CVE-2026-47021

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-07-22. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: 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: 2D). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; Oracle GraalVM for JDK: 17.0.19 and 21.0.11; Oracle GraalVM Enterprise Edition: 21.3.18. 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 partial denial of service (partial 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 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

July 21, 2026

Last Modified

August 12, 2026

References (1)

Vendor Advisories for CVE-2026-47021(20)

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

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuopenjdk-25-crac-testsupport (25.0.4+7-0ubuntu1~26.04) @ resolute2026-09-18ubuntu
ubuntuopenjdk-25-testsupport (25.0.4+7-1~26.04) @ resolute2026-09-18ubuntu
ubuntuopenjdk-21-crac-testsupport (21.0.12+8-0ubuntu1~26.04) @ resolute2026-09-18ubuntu
ubuntuopenjdk-8-source (8u502-ga~us1-0ubuntu1~24.04) @ noble2026-09-18ubuntu
ubuntuopenjdk-21-testsupport (21.0.12+8-1~26.04) @ resolute2026-09-18ubuntu
ubuntuopenjdk-17-source (17.0.20+8-1~24.04) @ noble2026-09-18ubuntu
ubuntuopenjdk-11-source (11.0.32+9-1ubuntu1~26.04) @ resolute2026-09-18ubuntu
ubuntuopenjdk-26-testsupport (26.0.2+10-2~26.04.2) @ resolute2026-09-18ubuntu
redhatjava-21-ibm-semeru-certified-jdk-1:21.0.12.0.8-1.el10_02026-08-10redhat
redhatjava-25-openjdk-main-25.0.4.0.7-1.1.1.hum12026-08-10redhat
redhatjava-1.8.0-ibm-1:1.8.0.8.70-1.el8_102026-08-10redhat
redhatjava-21-openjdk-portable-main-21.0.12.0.8-0.1.hum12026-08-04redhat
redhatjava-21-openjdk-main-21.0.12.0.8-0.1.hum12026-08-04redhat
redhatjava-25-openjdk-windows2026-07-30redhat
redhatjava-25-openjdk-portable-main-25.0.4.0.7-2.0.2.hum12026-07-27redhat
redhatjava-11-openjdk-portable2026-07-23redhat
redhatjava-17-openjdk-portable2026-07-23redhat
redhatjava-1.8.0-openjdk-1:1.8.0.502.b07-1.1.el92026-07-23redhat
redhatjava-21-openjdk-1:21.0.12.0.8-1.1.el92026-07-23redhat
redhatjava-25-openjdk-portable2026-07-23redhat
redhatjava-1.8.0-openjdk-portable2026-07-23redhat
redhatjava-1.8.0-openjdk-windows2026-07-23redhat
redhatjava-1.8.0-openjdk-1:1.8.0.502.b07-1.1.el7_92026-07-23redhat
redhatjava-17-openjdk-1:17.0.20.0.8-1.1.el92026-07-23redhat
redhatjava-11-openjdk-windows2026-07-23redhat
redhatjava-17-openjdk-windows2026-07-23redhat
redhatjava-21-openjdk-portable2026-07-23redhat
redhatjava-21-openjdk-windows2026-07-23redhat
redhatjava-25-openjdk-1:25.0.4.0.7-1.1.el92026-07-23redhat
redhatjava-11-openjdk-1:11.0.32.0.9-1.el92026-07-23redhat

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

(8 across 4 ecosystems)
Debian:14(3)
PackageVulnerable rangeFixed inDependents
openjdk-2121.0.10+7-1 ... 21.0.9~8ea-1 (20 versions)21.0.12+8-1—
openjdk-2525+36-1 ... 25~36ea-1 (22 versions)25.0.4+7-1—
openjdk-2626+35-1 ... 26~9ea-1 (19 versions)26.0.2+10-1—
Debian:11(2)
PackageVulnerable rangeFixed inDependents
openjdk-1111.0.12+7-2 ... 11.0.32~8ea-1 (72 versions)11.0.32+9-2~deb11u1—
openjdk-1717+35-1 ... 17~35ea-1 (91 versions)17.0.20+8-1~deb11u1—
Debian:13(2)
PackageVulnerable rangeFixed inDependents
openjdk-2121.0.10+7-1 ... 21.0.9~8ea-1 (19 versions)21.0.12+8-1~deb13u1—
openjdk-2525+36-1 ... 25~36ea-1 (21 versions)25.0.4+7-1~deb13u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
openjdk-1717.0.10+7-1 ... 17.0.9~6ea-1 (72 versions)17.0.20+8-1~deb12u1—

Weakness Classification(1)

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

Additional Vendor Advisories

(5)

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 20× in last 7d / 85× 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 199 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-47021?
CVE-2026-47021 is a medium vulnerability published on July 21, 2026. Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: 2D). Supported versions that are affected are Oracle Java SE: 8u491, 8u491-perf, 11.0.31, 17.0.19, 21.0.11, 25.0.3, 26.0.1; Oracle GraalVM for JDK: 17.0.19 and…
When was CVE-2026-47021 disclosed?
CVE-2026-47021 was first published in the National Vulnerability Database on July 21, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47021 actively exploited?
CVE-2026-47021 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 76.6% of all scored CVEs.
What is the CVSS score of CVE-2026-47021?
CVE-2026-47021 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-47021?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47021, 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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