CVE-2026-15895

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-15. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.8Exploit: None knownExposed: 0

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

OS command injection in the npm package loading component in AWS jsii-diff before 1.131.0 might allow context-dependent attackers to execute arbitrary commands via crafted package specifiers passed to the npm: source argument.

To mitigate this issue, users should upgrade to jsii-diff v1.131.0 or later.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity78% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
61%
KEV
Not listed

Published

July 15, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated Jul 15, 2026
Patch available. Sources: github_release.
github_release Patch Available

v1.131.0

Patch available: aws/jsii v1.131.0

https://github.com/aws/jsii/releases/tag/v1.131.0
generic

CVE-2026-15895: OS command injection in jsii-diff in AWS jsii

https://aws.amazon.com/security/security-bulletins/2026-057-aws/

Vendor Advisories for CVE-2026-15895(2)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
jsii-diff—1.131.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 71× 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 108 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-15895?
CVE-2026-15895 is a high vulnerability published on July 15, 2026. OS command injection in the npm package loading component in AWS jsii-diff before 1.131.0 might allow context-dependent attackers to execute arbitrary commands via crafted package specifiers passed to the npm: source argument. To mitigate this issue, users should upgrade to jsii-diff v1.131.0 or…
When was CVE-2026-15895 disclosed?
CVE-2026-15895 was first published in the National Vulnerability Database on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15895 actively exploited?
CVE-2026-15895 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 39.2% of all scored CVEs.
What is the CVSS score of CVE-2026-15895?
CVE-2026-15895 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-15895?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15895, 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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