CVE-2026-8759 xiandafu beetl SpELFunction SpELFunction.java expression language injection
Remote attackers can execute arbitrary code via expression language injection in the SpELFunction component of the Beetl library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8759?
CVE-2026-8759 is a medium-severity code injection vulnerability in xiandafu beetl, published on 17 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was identified in xiandafu beetl up to 3.20.2. Affected is an unknown function of the file beetl-classic-integration/beetl-spring-classic/src/main/java/org/beetl/ext/spring/SpELFunction.java of the component SpELFunction. The manipulation leads to improper neutralization of special elements used in an expression language statement. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-8759?
2 open source packages ship an affected version, including com.ibeetl:beetl-spring-classic.
| Package | Affected | Fixed in |
|---|---|---|
com.ibeetl:beetl-spring-classic Maven | All versions to 3.20.2.RELEASE | None |
com.ibeetl:beetl-spring-classic Maven | All versions to 3.20.2.RELEASE | None |
How do I fix CVE-2026-8759?
No fix has been published for CVE-2026-8759 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-8759 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8759 exists.
Sources
Also known as GHSA-fmmw-44rp-jcfp.