What is CVE-2026-52439?

CVE-2026-52439 is a critical-severity vulnerability in N/a, classified under Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection). CVSS score: 9.8/10. Published 2026-07-23.

How severe is CVE-2026-52439?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in N/a

CVE-2026-52439

An issue in xiandafu beetl 3.20.2 allows a remote attacker to execute arbitrary code via the type.new function and the property reflection mechanism

Vulnerability class: Log4Shell (CVE-2021-44228)

EPSS: 0.005 (42.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-917 — Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection)

References

cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-52439?: CVE-2026-52439 is a critical-severity vulnerability in N/a, classified under Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection). CVSS score: 9.8/10. Published 2026-07-23.
How severe is CVE-2026-52439?: Critical severity. CVSS v3 base score is 9.8 out of 10.