How severe is CVE-2026-40563?

CVE-2026-40563 has a CVSS score of 8.1/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2026-40563?

CVE-2026-40563 affects the following packages: org.apache.atlas:apache-atlas (Maven). Ecosystems affected: Maven.

How do I fix CVE-2026-40563?

Update org.apache.atlas:apache-atlas to 2.5.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-40563 is resolved across your whole dependency graph.

How do I detect CVE-2026-40563 in my Maven dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.atlas:apache-atlas, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2026-40563 if there is no patch (or I can't update yet)?

Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Is CVE-2026-40563 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-40563 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2026-40563?

CVE-2026-40563 has an EPSS (Exploit Prediction Scoring System) score of 0.5%, placing it in the 40th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2026-40563?

CVE-2026-40563 is classified as Code Injection (CWE-94). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2026-40563 published, and has it been updated?

CVE-2026-40563 was published on May 4, 2026 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

HIGH severity

CVE-2026-40563 — apache-atlas

HIGH

CVE-2026-40563 is a high-severity (CVSS 8.1) Code Injection vulnerability in org.apache.atlas:apache-atlas. A fix is available for org.apache.atlas:apache-atlas — see the affected versions and patch details below.

Apache Atlas: Script injection allows access to unintended data

Also known asGHSA-35xx-9xrg-gwhf

Published

May 4, 2026

Updated

Oct 28, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 5, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

A successful exploit gives an attacker total control of the affected component, not partial access.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-40563.

EPSS Exploitation Probability

via FIRST.org ↗

0.5%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs40th percentile — riskier than 40% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

☕org.apache.atlas:apache-atlas

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

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.

Affected Version:

This issue affects Apache Atlas: from 0.8-incubating through 2.4.0.

For affected versions >= 2.0.0, the vulnerability is only exploitable 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.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.apache.atlas:apache-atlas`	≥ 0.8&&< 2.5.0	2.5.0`org.apache.atlas:apache-atlas:2.5.0`

Affected Products

1 product · 1 configurations

Application

atlasapache

≥ 0.8 && < 2.5.0

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.atlas:apache-atlas, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.apache.atlas:apache-atlas to 2.5.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-40563 is resolved across your whole dependency graph.
Workarounds
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Frequently Asked Questions

### 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. ### Affected Version: This issue affects Apache Atlas: from 0.8-incubating through 2.4.0. For affected versions >= 2.0.0, the vulnerability is only exploitable when Atlas is deployed with below non-default configuration. `atlas.dsl.executor.traversal=false` ### Mitigation: Users are recommended

O3 Security · Impact-Aware SCA

Is CVE-2026-40563 in your dependencies?

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CVSS Score

8.1/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CWE Classification

CWE-94Code Injection

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

Timeline

Disclosed

May 4, 2026

Last updated

Oct 28, 2026

Identifiers

CVE-2026-40563

GHSA-35xx-9xrg-gwhf

References

Advisorygithub.com · CVE 2026 40563.json Advisorylists.apache.org · vd0oggmqxl2k1skm0z2f9p0plx7jhmfl Advisorynvd.nist.gov · CVE 2026 40563 Webopenwall.com Webrepo.maven.apache.org · maven2 Packagegithub.com · atlas

Related vulnerabilities

Also affects apache-atlas

This CVE is high severity; 1 of 4 other CVEs affecting apache-atlas is rated as high or higher (top: high).

CVE-2024-46910CVE-2022-34271CVE-2020-13928CVE-2019-10070

Same weakness: CWE-94

This CVE is high severity; 4 of 4 other CVEs with CWE-94 are rated as high or higher (top: critical).

CVE-2026-62284CVE-2026-61536CVE-2026-44267CVE-2026-44266Browse all CWE-94

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 28, 2026