CVE-2026-81743 Flowintel Arbitrary Log File Path Allows Remote Code Execution via Template Injection
Attackers can achieve remote code execution by manipulating log file paths to inject templates, requiring patching of Flowintel.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-81743?
CVE-2026-81743 is a high-severity code injection vulnerability in flowintel, published on 27 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Affected versions of Flowintel allow the LOG_FILE configuration value to be modified through system settings without restricting it to a filename inside the intended log directory.
Because the application constructs the log destination from this configurable value, an administrator could set LOG_FILE to an arbitrary filesystem path. Since attackers can influence logged content, this enables controlled data to be written into unintended files. The upstream commit specifically describes an exploitation chain in which an attacker injects a template into a chosen file and subsequently abuses application rendering behavior to execute code.
The patch removes LOG_FILE from the web-editable settings, introduces validate_log_file_name() to reject absolute paths, traversal, Windows paths, null bytes, and directory components, and centralizes log path construction through resolve_log_file_path().
Version impacted: >=3.3.0
Which versions are affected by CVE-2026-81743?
How do I fix CVE-2026-81743?
No fix has been published for CVE-2026-81743 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-81743 being exploited?
There is no known exploitation of CVE-2026-81743 in the wild and no public exploit code.
Sources
Also known as GHSA-jhj7-jmh6-rrgr.