CVE-2026-40563: Description: Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Atlas Apache At

This month

HIGH 8.1WATCHLISTUPGRADE

CVE-2026-40563 is a high-severity flaw (CVSS 8.1) affecting atlas. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Description: Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Atlas Apache Atlas exposes a DSL search endpoint that accepts user-supplied query strings. Attacker can alter Gremlin traversal logic within grammar-allowed characters to access unintended data Affect Version: This issue affects Apache Atlas: from 0.8 through 2.4.0. For the affect version >= 2.0, vulnerability is only when Atlas is deployed with

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-05-04
Last modified	2026-10-26

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

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-04 16:16 UTCPublished CVE record published
2026-10-26 19:10 UTCUpdated Record last modified

apache atlas UPGRADE

Affected: >= 0.8 and < 2.5.0

Fixed in: 2.5.0

Safe to downgrade to: a release before 0.8

1. Check installed version

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

2. UPGRADE to 2.5.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade atlas

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 0.8 (Debian / Ubuntu)

apt-cache madison atlas sudo apt install atlas=<VERSION_BEFORE_0.8> sudo apt-mark hold atlas

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

dnf --showduplicates list atlas sudo dnf downgrade atlas-<VERSION_BEFORE_0.8> sudo dnf versionlock add atlas

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-2026-40563?

atlas: upgrade to 2.5.0. Exact commands for each OS are on this page.

Is CVE-2026-40563 being exploited?

CVE-2026-40563 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-2026-40563 affect?

CVE-2026-40563 affects atlas. Severity is high (CVSS 8.1). Description: Improper Control of Generation of Code ('Code Injection') vulnerability in Apache Atlas Apache Atlas exposes a DSL search endpoint that accepts user-supplied query strings. Attacker can alter Gremlin traversal logic within gram

How urgent is CVE-2026-40563?

Priority 43/100. High severity; On your watchlist

Related CVEs

CVE-2026-50622 HIGH 8.8 UPGRADE Description: Missing Authorization in Apache Atlas. A missing authorization vulnerability in Apache Atlas's ad

References

← Back to latest CVEs