CVE-2026-61308

MEDIUMPre-NVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

Score 6.8 from GitHub Security Advisory published 2026-08-18. The CNA's CVSS baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:oracle, epss, ghsa
Trending — 4 sources updated this week
6.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.8Exploit: 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: 8u501, 11.0.32, 17.0.20, 21.0.12, 25.0.4, 26.0.2; Oracle GraalVM for JDK: 17.0.20 and 21.0.12; Oracle GraalVM Enterprise Edition: 21.3.19. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. While the vulnerability is in Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. 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 6.8 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N).

CVSS v3
6.8
EG Score
6.8MEDIUMmedium confidence
EG Risk
31
EG Risk 31/100CISA SSVC

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
Severity68% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
21st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 18, 2026

Last Modified

September 17, 2026

References (1)

Vendor Advisories for CVE-2026-61308(20)

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

Patch Availability(27)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuopenjdk-17-source (17.0.20.1+1-1~24.04) @ noble2026-10-04ubuntu
ubuntuopenjdk-8-source (8u504-ga-1ubuntu1~18.04.3) @ bionic2026-10-04ubuntu
ubuntuopenjdk-25-testsupport (25.0.4.1+1-1~26.04.4) @ resolute2026-10-04ubuntu
ubuntuopenjdk-11-source (11.0.32.1+1-1ubuntu1~26.04) @ resolute2026-10-04ubuntu
ubuntuopenjdk-21-testsupport (21.0.12.1+1-1~22.04.4) @ jammy2026-10-04ubuntu
redhatjava-21-ibm-semeru-certified-jdk-1:21.0.12.1.1-1.el10_02026-09-28redhat
redhatjava-1.8.0-ibm-1:1.8.0.8.71-1.el8_102026-09-23redhat
redhatjava-25-openjdk-windows2026-08-27redhat
redhatjava-21-openjdk-main-21.0.12.1.1-1.0.hum12026-08-21redhat
redhatjava-1.8.0-openjdk-1:1.8.0.504.b01-1.1.el92026-08-20redhat
redhatjava-11-openjdk-windows2026-08-20redhat
redhatjava-11-openjdk-portable2026-08-20redhat
redhatjava-25-openjdk-main-25.0.4.1.1-1.1.hum12026-08-20redhat
redhatjava-17-openjdk-windows2026-08-19redhat
redhatjava-1.8.0-openjdk-portable2026-08-19redhat
redhatjava-1.8.0-openjdk-windows2026-08-19redhat
redhatjava-21-openjdk-1:21.0.12.1.1-1.1.el92026-08-19redhat
redhatjava-17-openjdk-1:17.0.20.1.1-1.1.el92026-08-19redhat
redhatjava-25-openjdk-1:25.0.4.1.1-1.1.el92026-08-19redhat
redhatjava-25-openjdk-portable2026-08-19redhat
redhatjava-11-openjdk-1:11.0.32.1.1-1.el92026-08-19redhat
redhatjava-21-openjdk-portable-main-21.0.12.1.1-0.1.hum12026-08-19redhat
redhatjava-17-openjdk-portable2026-08-19redhat
redhatjava-21-openjdk-portable2026-08-19redhat
redhatjava-21-openjdk-windows2026-08-19redhat
redhatjava-25-openjdk-portable-main-25.0.4.1.1-0.1.hum12026-08-19redhat
redhatjava-1.8.0-openjdk-1:1.8.0.504.b01-1.1.el7_92026-08-19redhat

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

(6 across 3 ecosystems)
Debian:14(3)
PackageVulnerable rangeFix by version rangeDependents
openjdk-2121.0.10+7-1 ... 21.0.9~8ea-1 (23 versions)
  • every version up to 21.0.12.1+1-1: fixed in 21.0.12.1+1-1
—
openjdk-2525+36-1 ... 25~36ea-1 (25 versions)
  • every version up to 25.0.4.1+1-1: fixed in 25.0.4.1+1-1
—
openjdk-2626+35-1 ... 26~9ea-1 (22 versions)
  • every version up to 26.0.2.1+1-1: fixed in 26.0.2.1+1-1
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
openjdk-2121.0.10+7-1 ... 21.0.9~8ea-1 (22 versions)
  • every version up to 21.0.12.1+1-1~deb13u1: fixed in 21.0.12.1+1-1~deb13u1
—
openjdk-2525+36-1 ... 25~36ea-1 (24 versions)
  • every version up to 25.0.4.1+1-1~deb13u1: fixed in 25.0.4.1+1-1~deb13u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
openjdk-1717.0.10+7-1 ... 17.0.9~6ea-1 (76 versions)
  • every version up to 17.0.20.1+1-1~deb12u1: fixed in 17.0.20.1+1-1~deb12u1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(6)

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 19× in last 7d / 93× 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 160 total refreshes for this CVE.

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

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

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redhat:RHSA-2026:55774 · redhat:RHSA-2026:55798 · redhat:RHSA-2026:70630

Frequently asked(5)

What is CVE-2026-61308?
CVE-2026-61308 is a medium vulnerability published on August 18, 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: 8u501, 11.0.32, 17.0.20, 21.0.12, 25.0.4, 26.0.2; Oracle GraalVM for JDK: 17.0.20 and 21.0.12;…
When was CVE-2026-61308 disclosed?
CVE-2026-61308 was first published on August 18, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-61308 actively exploited?
CVE-2026-61308 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (21st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-61308?
CVE-2026-61308 has a CVSS base score of 6.8 (the CNA's own assessment, by oracle; NVD's own analysis pending).
How do I remediate CVE-2026-61308?
A fix for CVE-2026-61308 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-61308 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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