How severe is CVE-2026-40998?

CVE-2026-40998 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2026-40998 being actively exploited?

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

What products are affected by CVE-2026-40998?

CVE-2026-40998 affects Broadcom Spring Web Services. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40998?

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-2026-40998 have an EU (EUVD) identifier?

Yes. CVE-2026-40998 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36208.

When was CVE-2026-40998 published?

CVE-2026-40998 was published on 2026-06-11 and last updated on 2026-09-04.

CVE-2026-40998

CVE-2026-40998 is a high-severity vulnerability in Broadcom Spring Web Services with a CVSS 3.x base score of 8.2. 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-611.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36208
Weakness: CWE-611
Affected product: Broadcom Spring Web Services
Published: 2026-06-11
Last modified: 2026-09-04

Description

Jaxp13XPathTemplate evaluated XPath expressions for StreamSource and SAXSource inputs using a code path that parsed attacker-controlled XML with the JDK's default DocumentBuilderFactory behavior instead of Spring's hardened parser configuration. Applications that evaluate XPath against untrusted XML payloads could therefore be exposed to XML External Entity (XXE) style attacks. Affected versions: Spring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8.

Frequently asked questions

What is CVE-2026-40998?: Jaxp13XPathTemplate evaluated XPath expressions for StreamSource and SAXSource inputs using a code path that parsed attacker-controlled XML with the JDK's default DocumentBuilderFactory behavior instead of Spring's hardened parser configuration. Applications that evaluate XPath against untrusted XML payloads could therefore be exposed to XML External Entity (XXE) style attacks. Affected versions: Spring Web Services 5.0.0 through 5.0.1; 4.1.0 through 4.1.3; 4.0.0 through 4.0.18; 3.1.0 through 3.1.8.
How severe is CVE-2026-40998?: CVE-2026-40998 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2026-40998 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40998?: CVE-2026-40998 affects Broadcom Spring Web Services. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40998?: 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-2026-40998 have an EU (EUVD) identifier?: Yes. CVE-2026-40998 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36208.
When was CVE-2026-40998 published?: CVE-2026-40998 was published on 2026-06-11 and last updated on 2026-09-04.

References

https://spring.io/security/cve-2026-40998

Affected products (1)

cpe:2.3:a:broadcom:spring_web_services:*:*:*:*:*:*:*:*

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