CVE-2026-59313: spring framework — Fix

Description

Spring MVC applications using the functional web framework are vulnerable to stream corruption when using Server-Sent Events (SSE). Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49

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CVSS v3.1 Score

9.8

CRITICAL

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

EPSS — Exploit Prediction

0.0039

Probability of exploitation

0.32%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-93 CWE-93

Affected Products

Vendor	Product	Versions
vmware	spring_framework	5.3.0 — 5.3.49
vmware	spring_framework	6.0.0 — 6.0.30
vmware	spring_framework	6.1.0 — 6.1.28
vmware	spring_framework	6.2.0 — 6.2.19
vmware	spring_framework	7.0.0 — 7.0.8

References

Advisories & Patches

https://spring.io/security/cve-2026-59313

Frequently Asked Questions

What is CVE-2026-59313? +

Spring MVC applications using the functional web framework are vulnerable to stream corruption when using Server-Sent Events (SSE). Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-59313? +

CVE-2026-59313 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0039, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-59313? +

CVE-2026-59313 affects products from vmware, specifically: spring_framework. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-59313? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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