CVE-2026-29870 Path traversal in n/a
Attackers can overwrite arbitrary files via path traversal in the checkpoint directory, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-29870?
CVE-2026-29870 is a high-severity path traversal vulnerability in n/a, published on 31 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A directory traversal vulnerability in the agentic-context-engine project versions up to 0.7.1 allows arbitrary file writes via the checkpoint_dir parameter in OfflineACE.run. The save_to_file method in ace/skillbook.py fails to normalize or validate filesystem paths, allowing traversal sequences to escape the intended checkpoint directory. This vulnerability allows attackers to overwrite arbitrary files accessible to the application process, potentially leading to application corruption, privilege escalation, or code execution depending on the deployment context.
Weakness: CWE-22
Which versions are affected by CVE-2026-29870?
How do I fix CVE-2026-29870?
No fix has been published for CVE-2026-29870 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-29870 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-29870 exists.
Sources
Also known as GHSA-7gc4-v478-jrmv.