Spring MVC/WebFlux SSE Stream Corruption for v5.3-7.0.5
CVE-2026-22735 Published on March 19, 2026
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.
Vulnerability Analysis
CVE-2026-22735 can be exploited with network access, requires user interaction and a small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
Improper Locking
The software does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
Products Associated with CVE-2026-22735
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Affected Versions
Spring Foundation:- Version 7.0.0, <= 7.0.5 is affected.
- Version 6.2.0, <= 6.2.16 is affected.
- Version 6.1.0, <= 6.1.25 is affected.
- Version 5.3.0, <= 5.3.46 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.