CVE-2026-87288

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-15. A secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.1Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

Vulnerability in the Oracle GraalVM product of Oracle Java SE (component: Compiler). The supported version that is affected is Oracle GraalVM: 25.0.4.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle GraalVM. Successful attacks of this vulnerability can result in takeover of Oracle GraalVM. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS v3
8.1
EG Score
8.1HIGHhigh confidence
EG Risk
37
EG Risk 37/100CISA 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
28th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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

September 15, 2026

Last Modified

September 22, 2026

References (1)

Vendor Advisories for CVE-2026-87288(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 79× 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.

  1. 2026-10-05 05:26 UTCEG score recompute
  2. 2026-10-05 05:26 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 16:36 UTCGHSA enrichment
  5. 2026-10-04 03:46 UTCGHSA enrichment
  6. 2026-10-03 14:57 UTCEG score recompute
  7. 2026-10-03 14:56 UTCGHSA enrichment
  8. 2026-10-03 02:07 UTCEG score recompute
  9. 2026-10-03 02:07 UTCGHSA enrichment
  10. 2026-10-02 13:16 UTCGHSA enrichment
  11. 2026-10-02 00:14 UTCEG score recompute
  12. 2026-10-02 00:14 UTCGHSA enrichment
  13. 2026-10-01 19:51 UTCEPSS rescore
  14. 2026-10-01 10:49 UTCGHSA enrichment
  15. 2026-09-30 21:59 UTCEG score recompute
  16. 2026-09-30 21:59 UTCGHSA enrichment
  17. 2026-09-30 15:04 UTCEPSS rescore
  18. 2026-09-30 09:09 UTCGHSA enrichment
  19. 2026-09-29 20:18 UTCEG score recompute
  20. 2026-09-29 20:18 UTCGHSA enrichment
  21. 2026-09-29 05:02 UTCEG score recompute
  22. 2026-09-29 05:02 UTCGHSA enrichment
  23. 2026-09-28 16:12 UTCEG score recompute
  24. 2026-09-28 16:11 UTCGHSA enrichment
  25. 2026-09-28 13:52 UTCEPSS rescore
Show 54 more
  1. 2026-09-28 03:19 UTCGHSA enrichment
  2. 2026-09-27 14:29 UTCEG score recompute
  3. 2026-09-27 14:29 UTCGHSA enrichment
  4. 2026-09-27 13:48 UTCEPSS rescore
  5. 2026-09-27 01:39 UTCEG score recompute
  6. 2026-09-27 01:39 UTCGHSA enrichment
  7. 2026-09-26 15:59 UTCEPSS rescore
  8. 2026-09-26 12:47 UTCEG score recompute
  9. 2026-09-26 12:47 UTCGHSA enrichment
  10. 2026-09-25 23:49 UTCGHSA enrichment
  11. 2026-09-25 10:52 UTCGHSA enrichment
  12. 2026-09-24 21:40 UTCEG score recompute
  13. 2026-09-24 21:40 UTCGHSA enrichment
  14. 2026-09-24 14:04 UTCEPSS rescore
  15. 2026-09-24 08:12 UTCGHSA enrichment
  16. 2026-09-23 19:22 UTCEG score recompute
  17. 2026-09-23 19:22 UTCGHSA enrichment
  18. 2026-09-23 17:54 UTCEPSS rescore
  19. 2026-09-23 06:32 UTCGHSA enrichment
  20. 2026-09-22 17:42 UTCEG score recompute
  21. 2026-09-22 17:42 UTCGHSA enrichment
  22. 2026-09-22 16:01 UTCEPSS rescore
  23. 2026-09-22 04:32 UTCEG score recompute
  24. 2026-09-22 04:32 UTCGHSA enrichment
  25. 2026-09-22 04:02 UTCEG score recompute
  26. 2026-09-22 04:02 UTCGHSA enrichment
  27. 2026-09-21 21:09 UTCEPSS rescore
  28. 2026-09-21 15:26 UTCGHSA enrichment
  29. 2026-09-21 02:36 UTCEG score recompute
  30. 2026-09-21 02:36 UTCGHSA enrichment
  31. 2026-09-20 20:16 UTCEPSS rescore
  32. 2026-09-20 13:46 UTCGHSA enrichment
  33. 2026-09-20 00:56 UTCEG score recompute
  34. 2026-09-20 00:56 UTCGHSA enrichment
  35. 2026-09-19 12:06 UTCGHSA enrichment
  36. 2026-09-18 23:16 UTCEG score recompute
  37. 2026-09-18 23:16 UTCGHSA enrichment
  38. 2026-09-18 19:28 UTCEPSS rescore
  39. 2026-09-18 10:27 UTCGHSA enrichment
  40. 2026-09-17 21:37 UTCEG score recompute
  41. 2026-09-17 21:37 UTCGHSA enrichment
  42. 2026-09-17 19:32 UTCEPSS rescore
  43. 2026-09-17 08:47 UTCGHSA enrichment
  44. 2026-09-16 19:57 UTCGHSA enrichment
  45. 2026-09-16 17:49 UTCEG score recompute
  46. 2026-09-16 17:48 UTCGHSA enrichment
  47. 2026-09-16 16:53 UTCEG score recompute
  48. 2026-09-16 16:53 UTCGHSA enrichment
  49. 2026-09-16 14:09 UTCEPSS rescore
  50. 2026-09-16 09:29 UTCEG score recompute
  51. 2026-09-16 09:29 UTCGHSA enrichment
  52. 2026-09-15 20:39 UTCEG score recompute
  53. 2026-09-15 20:04 UTCEG score recompute
  54. 2026-09-15 20:02 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-87288?
CVE-2026-87288 is a high vulnerability published on September 15, 2026. Vulnerability in the Oracle GraalVM product of Oracle Java SE (component: Compiler). The supported version that is affected is Oracle GraalVM: 25.0.4.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle GraalVM. Successful attacks…
When was CVE-2026-87288 disclosed?
CVE-2026-87288 was first published on September 15, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-87288 actively exploited?
CVE-2026-87288 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (28th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-87288?
CVE-2026-87288 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-87288?
No fix for CVE-2026-87288 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-87288 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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