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Description

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.

PUBLISHED Reserved 2026-07-09 | Published 2026-07-09 | Updated 2026-07-09 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C

Problem types

Improperly Controlled Modification of Object Prototype Attributes

Code Injection

Product status

15.3.0
affected

15.3.1
affected

15.3.2
affected

15.3.3
affected

15.3.4
affected

15.3.5
affected

15.3.6
unaffected

Timeline

2026-07-09:Advisory disclosed
2026-07-09:VulDB entry created
2026-07-09:VulDB entry last update

Credits

Dremig (VulDB User) reporter

References

github.com/APIDevTools/json-schema-ref-parser/issues/421 exploit

vuldb.com/vuln/377123 (VDB-377123 | apidevtools json-schema-ref-parser pointer.ts Pointer.set prototype pollution) vdb-entry technical-description

vuldb.com/vuln/377123/cti (VDB-377123 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-15195 (CVE-2026-15195 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/851809 (Submit #851809 | Node.js @apidevtools/json-schema-ref-parser 15.3.5 Improperly Controlled Modification of Object Prototype Attribute) third-party-advisory

github.com/APIDevTools/json-schema-ref-parser/issues/421 issue-tracking

github.com/...ommit/a786bc6afc3674f650496472ee93d5cf74c4bd84 patch

github.com/...ls/json-schema-ref-parser/releases/tag/v15.3.6 patch

github.com/APIDevTools/json-schema-ref-parser/ product

cve.org (CVE-2026-15195)

nvd.nist.gov (CVE-2026-15195)

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