CVE-2026-15187

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-07-09. A secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.3Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

A security flaw has been discovered in enquirer up to 2.4.1. Affected is the function Enquirer.set of the component Public Package API. The manipulation of the argument question.name results in improperly controlled modification of object prototype attributes. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
35
EG Risk 35/100CISA 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
Severity43% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
35th
KEV
Not listed

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

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

Exploitation public PoC (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

July 9, 2026

Last Modified

September 3, 2026

Advisory Details (3)

Auto-updated Jul 9, 2026
🔬 Proof of concept available. Patch available.
generic🟡 PoC Available

Prototype pollution through public `Enquirer` prompt flow when `question.name` contains `__proto__` · Issue #487 · enquirer/enquirer · GitHub

https://github.com/enquirer/enquirer/issues/487#issuecomment-4648521328
generic🟡 PoC Available

Prototype pollution through public `Enquirer` prompt flow when `question.name` contains `__proto__` · Issue #487 · enquirer/enquirer · GitHub

https://github.com/enquirer/enquirer/issues/487
generic

GitHub - enquirer/enquirer: Stylish, intuitive and user-friendly prompts. Used by eslint, webpack, yarn, pm2, pnpm, RedwoodJS, FactorJS, salesforce, Cypress, Google Lighthouse, Generate, tencent cloudbase, lint-staged, gluegun, hygen, hardhat, AWS Amplify, GitHub Actions Toolkit, @airbnb/nimbus, and more! Please follow Enquirer's author: https://github.com/jonschlinkert · GitHub

https://github.com/enquirer/enquirer/

Vendor Advisories for CVE-2026-15187(2)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrust-main-1.96.1-1.hum12026-07-02redhat

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.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 45× 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 216 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-15187?
CVE-2026-15187 is a medium vulnerability published on July 9, 2026. A security flaw has been discovered in enquirer up to 2.4.1. Affected is the function Enquirer.set of the component Public Package API. The manipulation of the argument question.name results in improperly controlled modification of object prototype attributes. The attack can be launched remotely.…
When was CVE-2026-15187 disclosed?
CVE-2026-15187 was first published on July 9, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15187 actively exploited?
CVE-2026-15187 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15187?
CVE-2026-15187 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-15187?
A fix for CVE-2026-15187 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-15187 are linked in the Vendor Advisories panel on this page.

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