CVE-2026-62393: Improper Handling of Insufficient Permissions or Privileges vulnerability in Apache Kylin. Improper authorizat

Routine

MEDIUM 4.3WATCHLISTUPGRADE

CVE-2026-62393 is a medium-severity flaw (CVSS 4.3) affecting kylin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 62%)
CISA exploited list	No
Weakness	CWE-280
Published	2026-07-14
Last modified	2026-10-24

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-14 13:19 UTCPublished CVE record published
2026-10-24 21:10 UTCUpdated Record last modified

apache kylin UPGRADE

Affected: >= 4.0.0 and < 5.0.4

Fixed in: 5.0.4

Safe to downgrade to: a release before 4.0.0

1. Check installed version

apt-cache policy kylin || rpm -q kylin || kylin --version

2. UPGRADE to 5.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade kylin

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade kylin

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.0.0 (Debian / Ubuntu)

apt-cache madison kylin sudo apt install kylin=<VERSION_BEFORE_4.0.0> sudo apt-mark hold kylin

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list kylin sudo dnf downgrade kylin-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add kylin

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-62393?

kylin: upgrade to 5.0.4. Exact commands for each OS are on this page.

Is CVE-2026-62393 being exploited?

CVE-2026-62393 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-62393 affect?

CVE-2026-62393 affects kylin. Severity is medium (CVSS 4.3). 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 Apa

How urgent is CVE-2026-62393?

Priority 30/100. On your watchlist

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References

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