CVE-2026-87287

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-2026-87287(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 26× in last 7d / 82× 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 06:02 UTCEG score recompute
  2. 2026-10-05 06:02 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 18:01 UTCGHSA enrichment
  5. 2026-10-04 05:51 UTCGHSA enrichment
  6. 2026-10-03 17:50 UTCEG score recompute
  7. 2026-10-03 17:50 UTCGHSA enrichment
  8. 2026-10-03 05:50 UTCEG score recompute
  9. 2026-10-03 05:50 UTCGHSA enrichment
  10. 2026-10-02 17:45 UTCGHSA enrichment
  11. 2026-10-02 05:44 UTCEG score recompute
  12. 2026-10-02 05:44 UTCGHSA enrichment
  13. 2026-10-01 19:51 UTCEPSS rescore
  14. 2026-10-01 17:14 UTCGHSA enrichment
  15. 2026-10-01 05:10 UTCGHSA enrichment
  16. 2026-09-30 17:09 UTCEG score recompute
  17. 2026-09-30 17:09 UTCGHSA enrichment
  18. 2026-09-30 15:04 UTCEPSS rescore
  19. 2026-09-30 05:09 UTCGHSA enrichment
  20. 2026-09-29 17:08 UTCEG score recompute
  21. 2026-09-29 17:08 UTCGHSA enrichment
  22. 2026-09-29 05:08 UTCEG score recompute
  23. 2026-09-29 05:08 UTCGHSA enrichment
  24. 2026-09-28 17:07 UTCEG score recompute
  25. 2026-09-28 17:07 UTCGHSA enrichment
Show 57 more
  1. 2026-09-28 13:52 UTCEPSS rescore
  2. 2026-09-28 05:01 UTCGHSA enrichment
  3. 2026-09-27 17:00 UTCEG score recompute
  4. 2026-09-27 17:00 UTCGHSA enrichment
  5. 2026-09-27 13:48 UTCEPSS rescore
  6. 2026-09-27 04:59 UTCGHSA enrichment
  7. 2026-09-26 16:48 UTCEG score recompute
  8. 2026-09-26 16:48 UTCGHSA enrichment
  9. 2026-09-26 15:59 UTCEPSS rescore
  10. 2026-09-26 04:44 UTCEG score recompute
  11. 2026-09-26 04:44 UTCGHSA enrichment
  12. 2026-09-25 16:43 UTCGHSA enrichment
  13. 2026-09-25 04:42 UTCGHSA enrichment
  14. 2026-09-24 16:42 UTCEG score recompute
  15. 2026-09-24 16:42 UTCGHSA enrichment
  16. 2026-09-24 14:04 UTCEPSS rescore
  17. 2026-09-24 04:37 UTCEG score recompute
  18. 2026-09-24 04:37 UTCGHSA enrichment
  19. 2026-09-23 17:54 UTCEPSS rescore
  20. 2026-09-23 16:35 UTCGHSA enrichment
  21. 2026-09-23 04:35 UTCGHSA enrichment
  22. 2026-09-22 16:34 UTCEG score recompute
  23. 2026-09-22 16:34 UTCGHSA enrichment
  24. 2026-09-22 16:01 UTCEPSS rescore
  25. 2026-09-22 04:32 UTCEG score recompute
  26. 2026-09-22 04:32 UTCGHSA enrichment
  27. 2026-09-22 04:02 UTCEG score recompute
  28. 2026-09-22 04:02 UTCGHSA enrichment
  29. 2026-09-21 21:09 UTCEPSS rescore
  30. 2026-09-21 20:10 UTCGHSA enrichment
  31. 2026-09-21 08:09 UTCEG score recompute
  32. 2026-09-21 08:09 UTCGHSA enrichment
  33. 2026-09-20 20:16 UTCEPSS rescore
  34. 2026-09-20 20:08 UTCGHSA enrichment
  35. 2026-09-20 08:07 UTCGHSA enrichment
  36. 2026-09-19 20:06 UTCEG score recompute
  37. 2026-09-19 20:06 UTCGHSA enrichment
  38. 2026-09-19 08:05 UTCGHSA enrichment
  39. 2026-09-18 20:04 UTCEG score recompute
  40. 2026-09-18 20:04 UTCGHSA enrichment
  41. 2026-09-18 19:28 UTCEPSS rescore
  42. 2026-09-18 08:03 UTCGHSA enrichment
  43. 2026-09-17 20:02 UTCEG score recompute
  44. 2026-09-17 20:02 UTCGHSA enrichment
  45. 2026-09-17 19:32 UTCEPSS rescore
  46. 2026-09-17 07:58 UTCGHSA enrichment
  47. 2026-09-16 19:57 UTCGHSA enrichment
  48. 2026-09-16 17:49 UTCEG score recompute
  49. 2026-09-16 17:48 UTCGHSA enrichment
  50. 2026-09-16 16:53 UTCEG score recompute
  51. 2026-09-16 16:53 UTCGHSA enrichment
  52. 2026-09-16 14:09 UTCEPSS rescore
  53. 2026-09-16 08:46 UTCEG score recompute
  54. 2026-09-16 08:46 UTCGHSA enrichment
  55. 2026-09-15 20:39 UTCEG score recompute
  56. 2026-09-15 20:04 UTCEG score recompute
  57. 2026-09-15 20:02 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-87287?
CVE-2026-87287 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-2026-87287 disclosed?
CVE-2026-87287 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-2026-87287 actively exploited?
CVE-2026-87287 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-2026-87287?
CVE-2026-87287 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-2026-87287?
No fix for CVE-2026-87287 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-2026-87287 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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