Vulnerability details

CVE-2026-59313

Spring Framework

Server Sent Event stream corruption in Spring MVC functional web framework

CVSS 3.1
9.8Critical

Official 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

CVSS scores

ScoreVersionSourceVector
9.8Critical 3.1 CISA ADP / Vulnrichment (CISA-ADP) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

VendorProductVersionsSource
Spring Spring Framework 5.3.0 ≤ v ≤ 5.3.49 CVEProject cvelistV5 (CNA)
Spring Spring Framework 6.0.0 ≤ v ≤ 6.0.30 CVEProject cvelistV5 (CNA)
Spring Spring Framework 6.1.0 ≤ v ≤ 6.1.28 CVEProject cvelistV5 (CNA)
Spring Spring Framework 6.2.0 ≤ v ≤ 6.2.19 CVEProject cvelistV5 (CNA)
Spring Spring Framework 7.0.0 ≤ v ≤ 7.0.8 CVEProject cvelistV5 (CNA)

References and advisories

1
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Details

Published
2026-08-27
Last updated
2026-08-28
State
Published
Assigner (CNA)
vmware

Exploit prediction (EPSS)

0.56%
Probability of exploitation in 30 days
47%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
None
Technical impact
Total

Weaknesses (CWE)

  • CWE-93
    Improper Neutralization of CRLF Sequences ('CRLF Injection')