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) @ resolute2026-09-11ubuntu
ubuntuopenjdk-21-crac-testsupport (21.0.12+8-0ubuntu1~26.04) @ resolute2026-09-11ubuntu
ubuntuopenjdk-17-crac-source (17.0.20+8-0ubuntu1~26.04) @ resolute2026-09-11ubuntu
ubuntuopenjdk-26-testsupport (26.0.2+10-2~26.04.2) @ resolute2026-09-11ubuntu
ubuntuopenjdk-8-source (8u502-ga~us1-0ubuntu1~16.04) @ xenial2026-09-11ubuntu
ubuntuopenjdk-21-testsupport (21.0.12+8-1~22.04) @ jammy2026-09-11ubuntu
ubuntuopenjdk-17-source (17.0.20+8-1~24.04) @ noble2026-09-11ubuntu
ubuntuopenjdk-11-source (11.0.32+9-1ubuntu1~24.04) @ noble2026-09-11ubuntu
redhatjava-1.8.0-ibm-1:1.8.0.8.70-1.el8_102026-08-10redhat
redhatjava-25-openjdk-main-25.0.4.0.7-1.1.1.hum12026-08-10redhat
redhatjava-21-ibm-semeru-certified-jdk-1:21.0.12.0.8-1.el10_02026-08-10redhat
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-21-openjdk-windows2026-07-23redhat
redhatjava-25-openjdk-1:25.0.4.0.7-1.1.el92026-07-23redhat
redhatjava-1.8.0-openjdk-1:1.8.0.502.b07-1.1.el92026-07-23redhat
redhatjava-11-openjdk-portable2026-07-23redhat
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-17-openjdk-portable2026-07-23redhat
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 21× in last 7d / 92× 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 179 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

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 77.0% 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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