CVE-2026-59313
Spring MVC applications using the functional web framework are vulnerable to stream corruption…
Technology
Spring Framework
CVSS Score
9.8 / 10.0
Affected Versions
>=5.3.0 <=5.3.49; >=6.0.0 <=6.0.30; >=6.1.0 <=6.1.28; >=6.2.0 <=6.2.19
Upstream Fix
See upstream advisory
Published
August 27, 2026
OSSeva Coverage
Fixed upstream
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
Is your Spring Framework deployment affected?
If you're running >=5.3.0 <=5.3.49; >=6.0.0 <=6.0.30; >=6.1.0 <=6.1.28; >=6.2.0 <=6.2.19, you need this patch. Book a discovery call to get covered.