# CVE-2026-62393: Apache Kylin: Improper authorization in job information retrieval

> An attacker can access unauthorized job information from other projects in Apache Kylin due to improper authorization checks.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **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:** 15 Jul 2026
- **Also known as:** GHSA-9rx7-cp4p-rwx4

## What is CVE-2026-62393?

CVE-2026-62393 is a medium-severity missing authorization vulnerability in Apache Kylin, published on 14 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Improper Handling of Insufficient Permissions or Privileges vulnerability in Apache Kylin. Improper authorization in job information retrieval, where an attacker may get access to unauthorized jobs in other projects.

This issue affects Apache Kylin: from 4 through 5.0.3.

Users are recommended to upgrade to version 5.0.4, which fixes the issue.

Weakness: CWE-280 (Improper Handling of Insufficient Permissions or Privileges)

## Which versions are affected by CVE-2026-62393?

It affects 1 product.


Products: Apache Kylin.

## How do I fix CVE-2026-62393?

No fix has been published for CVE-2026-62393 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-62393 being exploited?

There is no known exploitation of CVE-2026-62393 in the wild and no public exploit code.

## Other vulnerabilities in Apache Kylin

- [CVE-2020-1956](https://insights.sbomify.com/CVE-2020-1956/): Apache Kylin OS Command Injection (high 8.8, exploited in the wild)
- [CVE-2026-62390](https://insights.sbomify.com/CVE-2026-62390/): Apache Kylin: SQL Injection Vulnerability in Catalog Cache Refresh API (critical 9.8)
- [CVE-2022-44621](https://insights.sbomify.com/CVE-2022-44621/): Apache Kylin: Command injection by Diagnosis Controller (critical 9.8)
- [CVE-2022-24697](https://insights.sbomify.com/CVE-2022-24697/): Apache Kylin vulnerable to remote code execution (critical 9.8)
- [CVE-2021-31522](https://insights.sbomify.com/CVE-2021-31522/): Apache Kylin unsafe class loading (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-62393 and fix it if it is affected.

What it is: CVE-2026-62393 is a medium-severity missing authorization vulnerability in Apache Kylin, 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-2026-62393 in the wild and no public exploit code.

Affected product: Apache Kylin. 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-2026-62393/ (Markdown: https://insights.sbomify.com/CVE-2026-62393/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-62393
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-62393
- OSV: https://osv.dev/vulnerability/CVE-2026-62393

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-62393/
Summaries are generated and may contain mistakes; the official description above is the record.