CVE-2026-41491 Dapr: Service Invocation path traversal ACL bypass
Attackers can bypass service invocation access controls in Dapr by using path traversal sequences in method paths, allowing unauthorized access to protected services.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-41491?
CVE-2026-41491 is a high-severity path traversal vulnerability in dapr, published on 8 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Dapr is a portable, event-driven, runtime for building distributed applications across cloud and edge. From versions 1.3.0 to before 1.15.14, 1.16.0-rc.1 to before 1.16.14, and 1.17.0-rc.1 to before 1.17.5, a vulnerability has been found in Dapr that allows bypassing access control policies for service invocation using reserved URL characters and path traversal sequences in method paths. The ACL normalized the method path independently from the dispatch layer, so the ACL evaluated one path while the target application received a different one. This issue has been patched in versions 1.15.14, 1.16.14, and 1.17.5.
Which versions are affected by CVE-2026-41491?
7 open source packages ship an affected version, including github.com/dapr/dapr. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/dapr/dapr Go | From 1.16.0-rc.1 | 1.16.14 |
github.com/dapr/dapr Go | From 1.16.0-rc.1 | 1.16.14 |
github.com/dapr/dapr Go | From 1.17.0-rc.1 | 1.17.5 |
github.com/dapr/dapr Go | From 1.17.0-rc.1 | 1.17.5 |
github.com/dapr/dapr Go | From 1.3.0 | 1.15.14, 1.16.14, 1.17.5 |
github.com/dapr/dapr Go | From 1.3.0 | 1.15.14 |
1 more packages
github.com/dapr/dapr Go | From 1.3.0 | 1.15.14 |
Products include Linuxfoundation Dapr.
How do I fix CVE-2026-41491?
Upgrade github.com/dapr/dapr to a fixed version for your release line: 1.16.14, 1.17.5 or 1.15.14.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-41491 being exploited?
There is no known exploitation of CVE-2026-41491 in the wild and no public exploit code.
Other vulnerabilities in dapr
Sources
Also known as GHSA-85gx-3qv6-4463, GO-2026-5242.