CVE-2026-8759 — beetl-spring-classic
HIGHCVE-2026-8759 is a high-severity (CVSS 7.3) Improper Input Validation vulnerability in com.ibeetl:beetl-spring-classic. No vendor fix is recorded yet; mitigation options are listed below.
Beetl's SpELFunction extension function has an expression injection risk
Exploitation Status
Proof-of-concept exploit code exists
- CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
- A successful exploit gives an attacker total control of the affected component, not partial access.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-8759.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2026-8759 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 380,066 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Real-World Exposure
com.ibeetl:beetl-spring-classicReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | com.ibeetl:beetl-spring-classic | all versions | No fix |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for com.ibeetl:beetl-spring-classic, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Remediation status
No patched version of com.ibeetl:beetl-spring-classic has shipped for CVE-2026-8759 yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.
Mitigate without a patch
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.
Frequently Asked Questions
Is CVE-2026-8759 in your dependencies?
Find it across Maven, including transitive dependencies.