CVE-2026-48499 Activepieces: Cross-tenant data exposure and code injection via the Code piece sandbox cache
Authenticated flow authors can inject code and read data from other tenants via unsanitized path segments in the Code piece sandbox cache.
- 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-2026-48499?
CVE-2026-48499 is a critical code injection vulnerability in activepieces, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Activepieces is an open source AI workflow automation platform. Prior to 0.84.0, an unsanitized path segment in the Code piece sandbox can let an authenticated flow author reach read-write cached flow and code files belonging to other tenants on the same worker, exposing embedded data and allowing modified code to execute on a victim tenant's next flow run. This issue is fixed in version 0.84.0.
Which versions are affected by CVE-2026-48499?
How do I fix CVE-2026-48499?
No fix has been published for CVE-2026-48499 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-2026-48499 being exploited?
There is no known exploitation of CVE-2026-48499 in the wild and no public exploit code.
Sources
Also known as GHSA-5h2x-g6m3-grmq.