CVE-2026-62390: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Apache K

This week

CRITICAL 9.8REMOTEWATCHLISTUPGRADE

CVE-2026-62390 is a critical-severity flaw (CVSS 9.8) affecting kylin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Apache Kylin. A backend API refreshing table catalog may cause the injection to the generated SQL. 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

Critical severity
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-89
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.

Exact fixes by distribution

Fedora 46 · conda · FIXED · 26.9.4-2.fc46 · FEDORA-2026-09931756f1 · source

sudo dnf upgrade --advisory=FEDORA-2026-09931756f1

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-2026-62390?

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

Is CVE-2026-62390 being exploited?

CVE-2026-62390 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-2026-62390 affect?

CVE-2026-62390 affects kylin. Severity is critical (CVSS 9.8). Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Apache Kylin. A backend API refreshing table catalog may cause the injection to the generated SQL. This issue affects Apache Kylin: from

How urgent is CVE-2026-62390?

Priority 60/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist

Related CVEs

CVE-2026-62392 CRITICAL 9.8 UPGRADE Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Ap
CVE-2026-62393 MEDIUM 4.3 UPGRADE Improper Handling of Insufficient Permissions or Privileges vulnerability in Apache Kylin. Improper authorizat

References

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