# CVE-2026-13482: skypilot-org skypilot User ID server.py username.encode weak hash

> Remote attackers can exploit weak hashing in the user ID handler to bypass security controls, requiring high complexity to execute.

- **Severity:** Medium 6.3 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Jun 2026
- **Updated:** 29 Jun 2026
- **Also known as:** GHSA-mh3f-459p-p84f

## What is CVE-2026-13482?

CVE-2026-13482 is a medium-severity vulnerability in skypilot-org skypilot, published on 28 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was detected in skypilot-org skypilot up to 0.12.0. Impacted is the function username.encode of the file sky/users/server.py of the component User ID Handler. The manipulation results in use of weak hash. The attack may be performed from remote. This attack is characterized by high complexity. The exploitability is considered difficult. The exploit is now public and may be used. The vendor was contacted early about this disclosure.

Weakness: CWE-328 (Use of Weak Hash), CWE-327 (Use of a Broken or Risky Cryptographic Algorithm)

## Which versions are affected by CVE-2026-13482?


## How do I fix CVE-2026-13482?

No fix has been published for CVE-2026-13482 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-13482 being exploited?

There is no known exploitation of CVE-2026-13482 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-13482 and fix it if it is affected.

What it is: CVE-2026-13482 is a medium-severity vulnerability in skypilot-org skypilot, published on 28 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-13482 in the wild and no public exploit code.

Affected product: skypilot-org skypilot. 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-2026-13482/ (Markdown: https://insights.sbomify.com/CVE-2026-13482/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-13482
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-13482
- OSV: https://osv.dev/vulnerability/CVE-2026-13482

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-13482/
Summaries are generated and may contain mistakes; the official description above is the record.