How severe is CVE-2026-40563?

CVE-2026-40563 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-40563 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40563?

CVE-2026-40563 affects Apache Atlas. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40563?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-40563 have an EU (EUVD) identifier?

Yes. CVE-2026-40563 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26979.

When was CVE-2026-40563 published?

CVE-2026-40563 was published on 2026-05-04 and last updated on 2026-06-17.

CVE-2026-40563

CVE-2026-40563 is a high-severity vulnerability in Apache Atlas with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26979
Weakness: CWE-94
Affected product: Apache Atlas
Published: 2026-05-04
Last modified: 2026-06-17

Description

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 below non-default configuration. atlas.dsl.executor.traversal=false Mitigation: Users are recommended to upgrade to version 2.5.0, which fixes the issue.

Frequently asked questions

What is CVE-2026-40563?: 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 below non-default configuration. atlas.dsl.executor.traversal=false Mitigation: Users are recommended to upgrade to version 2.5.0, which fixes the issue.
How severe is CVE-2026-40563?: CVE-2026-40563 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-40563 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40563?: CVE-2026-40563 affects Apache Atlas. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40563?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-40563 have an EU (EUVD) identifier?: Yes. CVE-2026-40563 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26979.
When was CVE-2026-40563 published?: CVE-2026-40563 was published on 2026-05-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:atlas:*:*:*:*:*:*:*:*

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