Vulnerability · Published Mar 19, 2026 · Assigned by vmware
CVE-2026-22735Server Sent Event stream corruption
Low 2.6
In plain English
A low-severity security flaw in Spring Foundation from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)2.6Low
Exploit odds (30 days)0.1%top 98.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libspring-java | no fix listed | DEBIAN-CVE-2026-22735 |
| Debian:13 | libspring-java | no fix listed | DEBIAN-CVE-2026-22735 |
| Debian:14 | libspring-java | no fix listed | DEBIAN-CVE-2026-22735 |
| Maven | org.springframework:spring-webflux | 7.0.6 | GHSA-6hcq-hmm3-jj3c |
| Maven | org.springframework:spring-webflux | 6.2.17 | GHSA-6hcq-hmm3-jj3c |
| Maven | org.springframework:spring-webflux | no fix listed | GHSA-6hcq-hmm3-jj3c |
| Maven | org.springframework:spring-webflux | no fix listed | GHSA-6hcq-hmm3-jj3c |
| Maven | org.springframework:spring-webmvc | no fix listed | GHSA-6hcq-hmm3-jj3c |
| Maven | org.springframework:spring-webmvc | 7.0.6 | GHSA-6hcq-hmm3-jj3c |
| Maven | org.springframework:spring-webmvc | 6.2.17 | GHSA-6hcq-hmm3-jj3c |
| Maven | org.springframework:spring-webmvc | no fix listed | GHSA-6hcq-hmm3-jj3c |
| Ubuntu:25.10 | libspring-java | no fix listed | UBUNTU-CVE-2026-22735 |
| Ubuntu:26.04:LTS | libspring-java | no fix listed | UBUNTU-CVE-2026-22735 |
| Ubuntu:26.10 | libspring-java | no fix listed | UBUNTU-CVE-2026-22735 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring Foundation | 7.0.0 – through 7.0.56.2.0 – through 6.2.166.1.0 – through 6.1.255.3.0 – through 5.3.46 |
Weakness: CWE-667 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N