CVE-2026-41007 Spring HATEOAS heap exhaustion through unbounded internal caching
Attackers can cause heap exhaustion and denial of service by exploiting unbounded caching in Spring HATEOAS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-41007?
CVE-2026-41007 is a high-severity denial of service vulnerability in Spring HATEOAS, published on 9 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Spring HATEOAS maintains an unbounded static cache of StringLinkRelation instances keyed on attacker-supplied strings.
Affected versions: Spring HATEOAS 1.5.0 through 1.5.6; 2.3.0 through 2.3.4; 2.4.0 through 2.4.1; 2.5.0 through 2.5.2; 3.0.0 through 3.0.3.
Weakness: CWE-770
Which versions are affected by CVE-2026-41007?
10 open source packages ship an affected version, including org.springframework.hateoas:spring-hateoas. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.springframework.hateoas:spring-hateoas Maven | All versions to 1.5.6 | None |
org.springframework.hateoas:spring-hateoas Maven | All versions to 1.5.6 | None |
org.springframework.hateoas:spring-hateoas Maven | From 2.3.0 to 2.3.4 | None |
org.springframework.hateoas:spring-hateoas Maven | From 2.3.0 to 2.3.4 | None |
org.springframework.hateoas:spring-hateoas Maven | From 2.4.0 to 2.4.1 | None |
org.springframework.hateoas:spring-hateoas Maven | From 2.4.0 to 2.4.1 | None |
4 more packages
org.springframework.hateoas:spring-hateoas Maven | From 2.5.0 | 2.5.3 |
org.springframework.hateoas:spring-hateoas Maven | From 2.5.0 | 2.5.3 |
org.springframework.hateoas:spring-hateoas Maven | From 3.0.0 | 3.0.4 |
org.springframework.hateoas:spring-hateoas Maven | From 3.0.0 | 3.0.4 |
Products include Vmware Spring Hateoas.
How do I fix CVE-2026-41007?
Upgrade org.springframework.hateoas:spring-hateoas to a fixed version for your release line: 2.5.3 or 3.0.4.
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-2026-41007 being exploited?
There is no known exploitation of CVE-2026-41007 in the wild and no public exploit code.
Other vulnerabilities in Spring HATEOAS
Sources
Also known as CLSA-2026-1786568979, CLSA-2026-1791959812, GHSA-439x-6767-44cv, ROOT-APP-MAVEN-CVE-2026-41007.