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Advisory details: gitlab / maven/org.springframework/spring-webmvc/CVE-2026-22735
Advisory ID gitlab/maven/org.springframework/spring-webmvc/CVE-2026-22735
Aliases CVE-2026-22735
GHSA-6hcq-hmm3-jj3c
Summary Spring MVC and WebFlux has Server Sent Event stream corruption Spring MVC and WebFlux applications are vulnerable to stream corruption when using Server-Sent Events (SSE). This issue affects Spring Foundation: from 7.0.0 through 7.0.5, from 6.2.0 through 6.2.16, from 6.1.0 through 6.1.25, from 5.3.0 through 5.3.46.
Status Published
Exploitability 0.5
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (3)
CWE-667 Improper Locking
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3.1 https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.springframework/spring-webmvc/CVE-2026-22735.yml
Reference id Reference type URL
https://github.com/spring-projects/spring-framework
cve-2026-22735 Other https://spring.io/security/cve-2026-22735
CVE-2026-22735 https://nvd.nist.gov/vuln/detail/CVE-2026-22735
GHSA-6hcq-hmm3-jj3c https://github.com/advisories/GHSA-6hcq-hmm3-jj3c
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.springframework/spring-webmvc/CVE-2026-22735.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-20T14:44:28Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/22xxx/CVE-2026-22735.json

Source Advisory: vulnrichment/CVE-2026-22735

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]