CVE-2026-41854 Spring Framework Server-Side Request Forgery via UriComponentsBuilder
Attackers can exploit incorrect host parsing in UriComponentsBuilder to perform server-side request forgery, potentially accessing internal resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-41854?
CVE-2026-41854 is a medium-severity server-side request forgery vulnerability in Vmware Spring Framework, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Due to incorrect host parsing, applications that rely on UriComponentsBuilder to parse and validate an externally provided URL string may be exposed to a server-side request forgery (SSRF) attack.
Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18.
Weakness: CWE-918
Which versions are affected by CVE-2026-41854?
4 open source packages ship an affected version, including org.springframework:spring-web. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.springframework:spring-web Maven | From 6.2.0 | 6.2.19 |
org.springframework:spring-web Maven | From 6.2.0 | 6.2.19 |
org.springframework:spring-web Maven | From 7.0.0 | 7.0.8 |
org.springframework:spring-web Maven | From 7.0.0 | 7.0.8 |
Products include Vmware Spring Framework.
How do I fix CVE-2026-41854?
Upgrade org.springframework:spring-web to a fixed version for your release line: 6.2.19 or 7.0.8.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-41854 being exploited?
There is no known exploitation of CVE-2026-41854 in the wild and no public exploit code.
Other vulnerabilities in Vmware Spring Framework
- CVE-2026-47884 Spring Framework Improper Path Limitation in XsltView
- CVE-2026-47890 Spring Framework Server Sent Event stream corruption while rendering fragments
- CVE-2026-47891 Spring Framework maxInMemorySize Bypassed in Jaxb2Decoder
- CVE-2026-47892 Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints
- CVE-2026-59313 Server Sent Event stream corruption in Spring MVC functional web framework
Sources
Also known as CLEANSTART-2026-DC52993, CLEANSTART-2026-DV00457, CLEANSTART-2026-EN89186, CLSA-2026-1786477496, CLSA-2026-1786599882, CLSA-2026-1786607729 and 19 more.