CVE-2026-41848 Spring Framework Denial of Service via AntPathMatcher
Attackers can cause denial of service in applications using Spring Framework by supplying malicious patterns to AntPathMatcher methods.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-41848?
CVE-2026-41848 is a low-severity denial of service vulnerability in Vmware Spring Framework, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Applications may be vulnerable to a Regular Expression Denial of Service (ReDoS) attack if an attacker is able to provide a pattern which is then directly or indirectly supplied to one of the following methods in AntPathMatcher: match(String pattern, String path), matchStart(String pattern, String path), extractUriTemplateVariables(String pattern, String path).
Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.
Weakness: CWE-1333
Which versions are affected by CVE-2026-41848?
8 open source packages ship an affected version, including org.springframework:spring-core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.springframework:spring-core Maven | All versions to 5.3.39 | None |
org.springframework:spring-core Maven | All versions to 5.3.39 | None |
org.springframework:spring-core Maven | From 6.1.0 to 6.1.21 | None |
org.springframework:spring-core Maven | From 6.1.0 to 6.1.21 | None |
org.springframework:spring-core Maven | From 6.2.0 | 6.2.19 |
org.springframework:spring-core Maven | From 6.2.0 | 6.2.19 |
2 more packages
org.springframework:spring-core Maven | From 7.0.0 | 7.0.8 |
org.springframework:spring-core Maven | From 7.0.0 | 7.0.8 |
Products include Vmware Spring Framework.
How do I fix CVE-2026-41848?
Upgrade org.springframework:spring-core to a fixed version for your release line: 6.2.19 or 7.0.8.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-41848 being exploited?
There is no known exploitation of CVE-2026-41848 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-BV52304, CLEANSTART-2026-EQ65269, CLEANSTART-2026-ZE72948, CLSA-2026-1781744122, CLSA-2026-1788534956, CLSA-2026-1788535212 and 24 more.