How severe is CVE-2026-40985?

CVE-2026-40985 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-40985 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-40985?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-40985 have an EU (EUVD) identifier?

Yes. CVE-2026-40985 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36200.

When was CVE-2026-40985 published?

CVE-2026-40985 was published on 2026-06-11 and last updated on 2026-06-23.

CVE-2026-40985

CVE-2026-40985 is a medium-severity vulnerability with a CVSS 3.x base score of 6.4. 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-917.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36200
Weakness: CWE-917
Published: 2026-06-11
Last modified: 2026-06-23

Description

Applications that configure the WebFlowELExpressionParser are vulnerable to the use of malicious Unified EL expressions. Affected versions: Spring Web Flow 4.0.0; 3.0.0 through 3.0.1; 2.5.0 through 2.5.1.

Frequently asked questions

What is CVE-2026-40985?: Applications that configure the WebFlowELExpressionParser are vulnerable to the use of malicious Unified EL expressions. Affected versions: Spring Web Flow 4.0.0; 3.0.0 through 3.0.1; 2.5.0 through 2.5.1.
How severe is CVE-2026-40985?: CVE-2026-40985 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-40985 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-40985?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-40985 have an EU (EUVD) identifier?: Yes. CVE-2026-40985 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36200.
When was CVE-2026-40985 published?: CVE-2026-40985 was published on 2026-06-11 and last updated on 2026-06-23.

References

https://spring.io/security/cve-2026-40985

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