CVE-2026-15195

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-07-09. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.3Exploit: NoneExposed: 0

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

A weakness has been identified in apidevtools json-schema-ref-parser up to 15.3.5. This impacts the function Refs.set/Pointer.set in the library lib/pointer.ts. Executing a manipulation can lead to improperly controlled modification of object prototype attributes. The attack can be launched remotely. Upgrading to version 15.3.6 will fix this issue. This patch is called a786bc6afc3674f650496472ee93d5cf74c4bd84. It is suggested to upgrade the affected component.

CVSS v3
6.3
EG Score
6.3(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
17.8%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 9, 2026

Advisory Details (4)

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

Prototype pollution in public `$Refs.set()` / `Pointer.set()` path via JSON Pointer tokens · Issue #421 · APIDevTools/json-schema-ref-parser · GitHub

https://github.com/APIDevTools/json-schema-ref-parser/issues/421
github_release Patch Available

v15.3.6

Patch available: APIDevTools/json-schema-ref-parser v15.3.6

https://github.com/APIDevTools/json-schema-ref-parser/releases/tag/v15.3.6
github_commit Patch Available

commit a786bc6afc36 (APIDevTools/json-schema-ref-parser)

Patch available: APIDevTools/json-schema-ref-parser v15.3.6 (contains commit a786bc6afc36)

https://github.com/APIDevTools/json-schema-ref-parser/commit/a786bc6afc3674f650496472ee93d5cf74c4bd84
generic

GitHub - APIDevTools/json-schema-ref-parser: Parse, Resolve, and Dereference JSON Schema $ref pointers in Node and browsers · GitHub

https://github.com/APIDevTools/json-schema-ref-parser/

Vendor Advisories for CVE-2026-15195(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 / 26× 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. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:05 UTCEG score recompute
  3. 2026-07-22 14:08 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
  5. 2026-07-20 17:08 UTCEPSS rescore
  6. 2026-07-19 14:30 UTCEPSS rescore
  7. 2026-07-19 02:28 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-17 04:17 UTCGHSA enrichment
  10. 2026-07-16 17:02 UTCEPSS rescore
  11. 2026-07-16 06:00 UTCGHSA enrichment
  12. 2026-07-15 16:57 UTCEPSS rescore
  13. 2026-07-15 07:43 UTCGHSA enrichment
  14. 2026-07-15 02:00 UTCEPSS rescore
  15. 2026-07-14 09:23 UTCGHSA enrichment
  16. 2026-07-13 22:30 UTCEPSS rescore
  17. 2026-07-13 11:04 UTCGHSA enrichment
  18. 2026-07-13 06:12 UTCEPSS rescore
  19. 2026-07-12 12:48 UTCGHSA enrichment
  20. 2026-07-12 05:46 UTCEPSS rescore
  21. 2026-07-11 14:32 UTCGHSA enrichment
  22. 2026-07-11 08:27 UTCEPSS rescore
  23. 2026-07-10 16:15 UTCGHSA enrichment
  24. 2026-07-09 19:07 UTCNVD updateCVSS v4 → 2.1
  25. 2026-07-09 17:56 UTCEG score recompute
Show 1 more
  1. 2026-07-09 17:56 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15195?
CVE-2026-15195 is a medium vulnerability published on July 9, 2026. A weakness has been identified in apidevtools json-schema-ref-parser up to 15.3.5. This impacts the function Refs.set/Pointer.set in the library lib/pointer.ts. Executing a manipulation can lead to improperly controlled modification of object prototype attributes. The attack can be launched…
When was CVE-2026-15195 disclosed?
CVE-2026-15195 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-2026-15195 actively exploited?
CVE-2026-15195 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-15195?
CVE-2026-15195 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-15195?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15195, 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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