# CVE-2026-24468: OpenAEV Vulnerable to Username/Email Enumeration Through Differential HTTP Responses in Password Reset API

> An attacker can enumerate valid user accounts by observing differential HTTP responses in the password reset API, facilitating targeted attacks.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Apr 2026
- **Updated:** 20 Apr 2026
- **Also known as:** GHSA-v6rg-hf9w-f8ph

## What is CVE-2026-24468?

CVE-2026-24468 is a medium-severity vulnerability in OpenAEV-Platform openaev, published on 20 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

OpenAEV is an open source platform allowing organizations to plan, schedule and conduct cyber adversary simulation campaign and tests. Starting in version 1.11.0 and prior to version 2.0.13, the /api/reset endpoint behaves differently depending on whether the supplied username exists in the system. When a non-existent email is provided in the login parameter, the endpoint returns an HTTP 400 response (Bad Request). When a valid email is supplied, the endpoint responds with HTTP 200. This difference in server responses creates an observable discrepancy that allows an attacker to reliably determine which emails are registered in the application. By automating requests with a list of possible email addresses, an attacker can quickly build a list of valid accounts without any authentication. The endpoint should return a consistent response regardless of whether the username exists in order to prevent account enumeration. Version 2.0.13 fixes this issue.

Weakness: CWE-204 (Observable Response Discrepancy)

## Which versions are affected by CVE-2026-24468?


## How do I fix CVE-2026-24468?

No fix has been published for CVE-2026-24468 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-24468 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-24468 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-24468 and fix it if it is affected.

What it is: CVE-2026-24468 is a medium-severity vulnerability in OpenAEV-Platform openaev, published on 20 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-24468 exists.

Affected product: OpenAEV-Platform openaev. 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-2026-24468/ (Markdown: https://insights.sbomify.com/CVE-2026-24468/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-24468
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-24468
- OSV: https://osv.dev/vulnerability/CVE-2026-24468

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-24468/
Summaries are generated and may contain mistakes; the official description above is the record.