CVE-2026-92709 Rsyslog: DynFile Path Traversal → Arbitrary File Write as Root → RCE
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-92709?
CVE-2026-92709 is a high-severity vulnerability in rsyslog, published on 22 Oct 2026.
Official description
Rsyslog is a rocket-fast system for log processing. From versions 1.15.0 to 8.2610.0, rsyslog's omfile dynaFile facility intentionally allows templates to generate flexible output paths. This supports valid deployments that route logs into different directories or use dynamically generated file names. A deployment becomes unsafe when a dynaFile template uses a value influenced by untrusted input as a path component without explicit secure-path handling. In that configuration, the rendered path can escape the operator's intended log directory. This is not limited to the RFC5424 HOSTNAME field. Any untrusted value that reaches a dynaFile path component can create the condition. At time of publication, there are no publicly available patches.
Which versions are affected by CVE-2026-92709?
How do I fix CVE-2026-92709?
No fix has been published for CVE-2026-92709 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-92709 being exploited?
There is no known exploitation of CVE-2026-92709 in the wild and no public exploit code.
Sources
Also known as AZL-111473, DEBIAN-CVE-2026-92709, ECHO-66b7-0f22-7b10, GHSA-xmp9-244p-5ggv, UBUNTU-CVE-2026-92709.