apidevtools json-schema-ref-parser up to 15.3.5 lib/pointer.ts Refs.set/Pointer.set prototype pollution

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in apidevtools json-schema-ref-parser up to 15.3.5. It has been classified as critical. Affected is the function Refs.set/Pointer.set in the library lib/pointer.ts. The manipulation leads to prototype pollution. This vulnerability is listed as CVE-2026-15195. The attack may be initiated remotely. In addition, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in apidevtools json-schema-ref-parser up to 15.3.5 and classified as critical. This issue affects the function Refs.set/Pointer.set in the library lib/pointer.ts. The manipulation with an unknown input leads to a prototype pollution vulnerability. Using CWE to declare the problem leads to CWE-1321. The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. Impacted is confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-15195. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a exploit are known. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

It is declared as proof-of-concept.

Upgrading to version 15.3.6 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch a786bc6afc3674f650496472ee93d5cf74c4bd84 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Prototype pollution
CWE: CWE-1321 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Proof-of-Concept

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: json-schema-ref-parser 15.3.6
Patch: a786bc6afc3674f650496472ee93d5cf74c4bd84

Timelineinfo

07/09/2026 Advisory disclosed
07/09/2026 +0 days VulDB entry created
07/09/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 421
Status: Confirmed

CVE: CVE-2026-15195 (🔒)
GCVE (CVE): GCVE-0-2026-15195
GCVE (VulDB): GCVE-100-377123
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/09/2026 08:05
Changes: 07/09/2026 08:05 (59)
Complete: 🔍
Submitter: Dremig
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #851809: Node.js @apidevtools/json-schema-ref-parser 15.3.5 Improperly Controlled Modification of Object Prototype Attribute (by Dremig)

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