CVE-2026-12567 Symlink-following arbitrary write via github_workflows module
A local attacker can exploit symlink handling in BBOT's github_workflows module to write arbitrary files to sensitive locations.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-12567?
CVE-2026-12567 is a low-severity path traversal vulnerability in Black Lantern Security BBOT, published on 17 Jun 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The github_workflows module constructs local directory paths from user-controlled repository names without validating for symlinks. A local attacker sharing the scan directory can plant a symlink at the predictable output path, causing workflow data to be written to an attacker-chosen location.
Weakness: CWE-59
Which versions are affected by CVE-2026-12567?
3 open source packages ship an affected version, including bbot.
| Package | Affected | Fixed in |
|---|---|---|
bbot PyPI | From 2.0.0 | 2.8.5 |
bbot PyPI | From 2.0.0 | 2.8.5 |
bbot PyPI | From 2.0.0 | 2.8.5 |
How do I fix CVE-2026-12567?
Upgrade bbot to 2.8.5 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-12567 being exploited?
There is no known exploitation of CVE-2026-12567 in the wild and no public exploit code.
Sources
Also known as GHSA-rvp7-w75q-9fv2, PYSEC-2026-2394.