Is CVE-2026-41849 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-41849 being exploited in the wild.

How severe is CVE-2026-41849?

High severity, with a CVSS score of 7.5, published 9 June 2026.

Which products and versions are affected?

org.springframework:spring-expression (Maven) <= 5.3.39, ECOSYSTEM:introduced=0,last_affected=5.3.39; VMware Spring Framework 5.3.0 through 5.3.48.

Is there a fix for CVE-2026-41849?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-41849 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-41849?

Check whether you run org.springframework:spring-expression (Maven) or VMware Spring Framework at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-41849: VMware Spring Framework integer overflow in SpEL evaluation

Q: Is there a fix for CVE-2026-41849?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

Q: How is CVE-2026-41849 attacked?

It is attacked over the network, in a software library.

Q: Am I affected by CVE-2026-41849?

Check whether you run org.springframework:spring-expression (Maven) or VMware Spring Framework at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-41849 · Severity: high · CVSS 7.5 · Published 2026-06-09

The Spring Framework is a widely used software foundation for building Java-based enterprise applications. A vulnerability in its expression language component allows an attacker to send a specially crafted request that causes the server to consume excessive CPU or memory resources. This can lead to a denial-of-service (DoS) condition, making the application unavailable to legitimate users.

Technologies: org.springframework:spring-expression (Maven), VMware Spring Framework. Vendors: Maven, VMware.

Quick answers

Is CVE-2026-41849 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-41849 being exploited in the wild.
How severe is CVE-2026-41849?: High severity, with a CVSS score of 7.5, published 9 June 2026.
Which products and versions are affected?: org.springframework:spring-expression (Maven) <= 5.3.39, ECOSYSTEM:introduced=0,last_affected=5.3.39; VMware Spring Framework 5.3.0 through 5.3.48.
Is there a fix for CVE-2026-41849?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-41849 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-41849?: Check whether you run org.springframework:spring-expression (Maven) or VMware Spring Framework at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An integer overflow vulnerability (CWE-190) exists within the evaluation logic of the Spring Expression Language (SpEL) in the Spring Framework. The flaw is located in the `spring-expression` module, where certain calculations during expression evaluation do not properly handle large integer values, leading to a wraparound. A remote, unauthenticated attacker can exploit this by providing a specially crafted SpEL expression that triggers an infinite loop or excessive memory allocation. This results in a Denial of Service (DoS) by exhausting system resources. The vulnerability affects versions 5.3.0 through 5.3.48; users should upgrade to a patched version (e.g., 5.3.49 or later) as recommended by the vendor.

Affected products

VMware Spring Framework 5.3.0 through 5.3.48

Identifiers

CVE-2026-41849
GHSA-775g-4xr8-78h8

Timeline

2026-06-09: disclosed
2026-06-09: advisory

References

https://spring.io/security/cve-2026-41849

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