SB2026061686 - SQL injection in syslog-ng SQL destionation driver

Description

This security bulletin contains information about 1 vulnerability.

1) SQL injection (CVE-ID: CVE-2026-39879)

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform SQL injection.

The vulnerability exists due to improper neutralization of escape, meta, or control sequences in afsql_dd_run_query when processing data from an untrusted source in the SQL destination driver. A remote attacker can supply crafted input to perform SQL injection.

Only deployments with the SQL destination driver manually configured are vulnerable.

Remediation

Install update from vendor's website.

References

• https://github.com/syslog-ng/syslog-ng/security/advisories/GHSA-qwf9-6222-m24m
• https://github.com/syslog-ng/syslog-ng/blob/649e6e18e3459fb4467000a88dfb12fa97f9719c/modules/afsql/afsql.c#L219