What is CVE-2026-8671?

CVE-2026-8671 is a high-severity vulnerability in Avantra, classified under Insertion of Sensitive Information into Log File. CVSS score: 7.5/10. Published 2026-05-22.

How severe is CVE-2026-8671?

High severity. CVSS v3 base score is 7.5 out of 10.

Information disclosure in Avantra

CVE-2026-8671

Insertion of sensitive information into log file vulnerability in syslink software AG Avantra on Linux, Windows allows Resource Leak Exposure. This issue affects Avantra: before 25.3.0.

EPSS: 0.000 (9.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:L.

Affected products

Avantra
Linux Linux_kernel
Microsoft Windows
Syslink Software Ag Avantra — versions 0

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

vulnerability@ncsc.ch (vendor-advisory, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-8671?: CVE-2026-8671 is a high-severity vulnerability in Avantra, classified under Insertion of Sensitive Information into Log File. CVSS score: 7.5/10. Published 2026-05-22.
How severe is CVE-2026-8671?: High severity. CVSS v3 base score is 7.5 out of 10.