What is CVE-2026-41219?

CVE-2026-41219 is a medium-severity vulnerability in F5 Big-ip, classified under Insertion of Sensitive Information into Log File. CVSS score: 6.5/10. Published 2026-05-13.

How severe is CVE-2026-41219?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Information disclosure in F5 Big-ip

CVE-2026-41219

An improper sanitization vulnerability exists in the BIG-IP QKView utility that allows a low-privileged attacker to read sensitive information from a QKView file. Note: Software versions which have reached End of Technical Support (EoT…

EPSS: 0.001 (21.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

F5 Big-ip — versions 21.0.0, 17.5.0, 17.1.0
F5 Big-iq — versions 8.4.0

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

f5sirt@f5.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-41219?: CVE-2026-41219 is a medium-severity vulnerability in F5 Big-ip, classified under Insertion of Sensitive Information into Log File. CVSS score: 6.5/10. Published 2026-05-13.
How severe is CVE-2026-41219?: Medium severity. CVSS v3 base score is 6.5 out of 10.