What is CVE-2026-41883?

CVE-2026-41883 is a high-severity vulnerability in Omnifaces, classified under Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection). CVSS score: 8.1/10. Published 2026-05-08.

How severe is CVE-2026-41883?

High severity. CVSS v3 base score is 8.1 out of 10.

RCE in Omnifaces

CVE-2026-41883

OmniFaces is a utility library for Faces. Prior to versions 1.14.2, 2.7.32, 3.14.16, 4.7.5, and 5.2.3, there is a server-side EL injection leading to Remote Code Execution (RCE). This affects applications that use CDNResourceHandler with a…

Vulnerability class: Log4Shell (CVE-2021-44228)

EPSS: 0.003 (56.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Omnifaces — versions < 1.14.2, >= 2.0-RC1, < 2.7.32, >= 3.0-RC1, < 3.14.16

Weakness classification (CWE)

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

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-41883?: CVE-2026-41883 is a high-severity vulnerability in Omnifaces, classified under Improper Neutralization of Special Elements used in an Expression Language Statement (Expression Language Injection). CVSS score: 8.1/10. Published 2026-05-08.
How severe is CVE-2026-41883?: High severity. CVSS v3 base score is 8.1 out of 10.