What is CVE-2026-39879?

CVE-2026-39879 is a high-severity vulnerability in Syslog-ng, classified under CWE-150. CVSS score: 7.1/10. Published 2026-07-20.

How severe is CVE-2026-39879?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Syslog-ng

CVE-2026-39879

Due to a missing sanitization call in [`afsql_dd_run_query`](https://github.com/syslog-ng/syslog-ng/blob/649e6e18e3459fb4467000a88dfb12fa97f9719c/modules/afsql/afsql.c#L219), syslog-ng before 4.12 are vulnerable to SQL injection from an un…

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.

Affected products

Syslog-ng — versions < 4.12

Weakness classification (CWE)

CWE-150

References

https://github.com/syslog-ng/syslog-ng/security/advisories/GHSA-qwf9-6222-m24m (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-39879?: CVE-2026-39879 is a high-severity vulnerability in Syslog-ng, classified under CWE-150. CVSS score: 7.1/10. Published 2026-07-20.
How severe is CVE-2026-39879?: High severity. CVSS v3 base score is 7.1 out of 10.