# CVE-2026-64866: New API: Admin can reset passkeys for same-level or higher-privileged users

> An administrator can reset passkeys for same-level or higher-privileged users, potentially leading to account takeover or privilege escalation.

- **Severity:** Medium 5.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 17 Aug 2026
- **Updated:** 17 Aug 2026
- **Also known as:** GHSA-p845-629j-rcj6, GO-2026-6244

## What is CVE-2026-64866?

CVE-2026-64866 is a medium-severity missing authorization vulnerability in QuantumNous new-api, published on 17 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. From 0.9.1.3 until 1.0.0-rc.7, AdminResetPasskey in controller/passkey.go lacks the canManageTargetRole authorization check for DELETE /api/user/:id/reset_passkey, allowing a lower-privileged administrator to remove a passkey from a same-level or higher-privileged account, including a root account. This issue is fixed in version 1.0.0-rc.7.

Weakness: CWE-862 (Missing Authorization)

## Which versions are affected by CVE-2026-64866?

3 open source packages ship an affected version, including github.com/QuantumNous/new-api.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/QuantumNous/new-api` | Go | All versions | 1.0.0-rc.7 |
| `github.com/QuantumNous/new-api` | Go | From 0.9.1.3 | 1.0.0-rc.7 |
| `github.com/QuantumNous/new-api` | Go | From 0.9.1.3 | 1.0.0-rc.7 |

## How do I fix CVE-2026-64866?

Upgrade github.com/QuantumNous/new-api to 1.0.0-rc.7 or later.

## Is CVE-2026-64866 being exploited?

There is no known exploitation of CVE-2026-64866 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-64866 and fix it if it is affected.

What it is: CVE-2026-64866 is a medium-severity missing authorization vulnerability in QuantumNous new-api, published on 17 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-64866 in the wild and no public exploit code.

Affected packages and fixed versions:
- github.com/QuantumNous/new-api (Go): affected all versions; fixed in 1.0.0-rc.7
- github.com/QuantumNous/new-api (Go): affected from 0.9.1.3; fixed in 1.0.0-rc.7
- github.com/QuantumNous/new-api (Go): affected from 0.9.1.3; fixed in 1.0.0-rc.7

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-2026-64866/ (Markdown: https://insights.sbomify.com/CVE-2026-64866/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-64866
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-64866
- OSV: https://osv.dev/vulnerability/CVE-2026-64866

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-64866/
Summaries are generated and may contain mistakes; the official description above is the record.