# CVE-2026-15698: kofrasa mingo Update API updateMany prototype pollution

> Remote attackers can achieve code execution or privilege escalation via prototype pollution in the mingo library's Update API.

- **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:** 14 Jul 2026
- **Updated:** 14 Jul 2026
- **Also known as:** GHSA-j7jf-w73f-7hjp

## What is CVE-2026-15698?

CVE-2026-15698 is a medium-severity code injection vulnerability in kofrasa mingo, published on 14 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability was determined in kofrasa mingo up to 7.2.1. This impacts the function update/updateOne/updateMany of the component Update API. Executing a manipulation of the argument Set can lead to improperly controlled modification of object prototype attributes. The attack may be launched remotely. Upgrading to version 7.2.2 will fix this issue. This patch is called fadc398251792c2ba441cbc539f359fc7943c0c2. It is recommended 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-2026-15698?


## How do I fix CVE-2026-15698?

No fix has been published for CVE-2026-15698 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-15698 being exploited?

There is no known exploitation of CVE-2026-15698 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-15698 and fix it if it is affected.

What it is: CVE-2026-15698 is a medium-severity code injection vulnerability in kofrasa mingo, published on 14 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-15698 in the wild and no public exploit code.

Affected product: kofrasa mingo. 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-2026-15698/ (Markdown: https://insights.sbomify.com/CVE-2026-15698/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-15698
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-15698
- OSV: https://osv.dev/vulnerability/CVE-2026-15698

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-15698/
Summaries are generated and may contain mistakes; the official description above is the record.