# CVE-2026-15195: apidevtools json-schema-ref-parser pointer.ts Pointer.set prototype pollution

> Remote attackers can exploit prototype pollution in json-schema-ref-parser to execute arbitrary code or escalate privileges.

- **Severity:** Medium 5.3 (`CVSS: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`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jul 2026
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-hghm-9vcp-cxvv

## What is CVE-2026-15195?

CVE-2026-15195 is a medium-severity code injection vulnerability in apidevtools json-schema-ref-parser, published on 9 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-1321 (Improperly Controlled Modification of Object Prototype Attributes)

## Which versions are affected by CVE-2026-15195?


## How do I fix CVE-2026-15195?

No fix has been published for CVE-2026-15195 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-15195 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15195 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-15195 and fix it if it is affected.

What it is: CVE-2026-15195 is a medium-severity code injection vulnerability in apidevtools json-schema-ref-parser, published on 9 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15195 exists.

Affected product: apidevtools json-schema-ref-parser. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-15195/ (Markdown: https://insights.sbomify.com/CVE-2026-15195/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-15195
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-15195
- OSV: https://osv.dev/vulnerability/CVE-2026-15195

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-15195/
Summaries are generated and may contain mistakes; the official description above is the record.