CVE-2026-15187

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH 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
Trending — 5 sources updated this weekElevated
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

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

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
4.3(high)
EPSS
16.0%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 9, 2026

Advisory Details (3)

Auto-updated Jul 9, 2026
🔬 Proof of concept available. No patch confirmed yet.
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(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 9× 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. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 16:05 UTCEG score recompute
  3. 2026-07-11 16:05 UTCGHSA enrichment
  4. 2026-07-11 08:27 UTCEPSS rescore
  5. 2026-07-10 15:51 UTCEG score recompute
  6. 2026-07-10 15:51 UTCGHSA enrichment
  7. 2026-07-09 17:00 UTCNVD updateCVSS v4 → 2.1
  8. 2026-07-09 15:37 UTCEG score recompute
  9. 2026-07-09 15:35 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

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 in the National Vulnerability Database on July 9, 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 16.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-15187?
CVE-2026-15187 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-15187?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15187, 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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