XSS via returnURL in kortix-ai suna Router till 0.8.38
CVE-2026-12811 Published on June 21, 2026
kortix-ai suna Auth Endpoint page.tsx router.push cross site scripting
A weakness has been identified in kortix-ai suna up to 0.8.38. Affected by this issue is the function router.replace/router.push of the file apps/frontend/src/app/auth/page.tsx of the component Auth Endpoint. Executing a manipulation of the argument returnURL can lead to cross site scripting. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.8.39 can resolve this issue. This patch is called f5dec7aa0c1b8fa0125938f292c0f2430ca75f6c. It is advisable to upgrade the affected component. The researcher explains: "The issue was fixed in v0.8.39 without notifying the wider user base via a security disclosure."
Timeline
Advisory disclosed
VulDB entry created
VulDB entry last update
Weakness Types
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-12811 has been classified to as a XSS vulnerability or weakness.
What is a Code Injection Vulnerability?
The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CVE-2026-12811 has been classified to as a Code Injection vulnerability or weakness.
Products Associated with CVE-2026-12811
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Affected Versions
kortix-ai suna:- Version 0.8.0 is affected.
- Version 0.8.1 is affected.
- Version 0.8.2 is affected.
- Version 0.8.3 is affected.
- Version 0.8.4 is affected.
- Version 0.8.5 is affected.
- Version 0.8.6 is affected.
- Version 0.8.7 is affected.
- Version 0.8.8 is affected.
- Version 0.8.9 is affected.
- Version 0.8.10 is affected.
- Version 0.8.11 is affected.
- Version 0.8.12 is affected.
- Version 0.8.13 is affected.
- Version 0.8.14 is affected.
- Version 0.8.15 is affected.
- Version 0.8.16 is affected.
- Version 0.8.17 is affected.
- Version 0.8.18 is affected.
- Version 0.8.19 is affected.
- Version 0.8.20 is affected.
- Version 0.8.21 is affected.
- Version 0.8.22 is affected.
- Version 0.8.23 is affected.
- Version 0.8.24 is affected.
- Version 0.8.25 is affected.
- Version 0.8.26 is affected.
- Version 0.8.27 is affected.
- Version 0.8.28 is affected.
- Version 0.8.29 is affected.
- Version 0.8.30 is affected.
- Version 0.8.31 is affected.
- Version 0.8.32 is affected.
- Version 0.8.33 is affected.
- Version 0.8.34 is affected.
- Version 0.8.35 is affected.
- Version 0.8.36 is affected.
- Version 0.8.37 is affected.
- Version 0.8.38 is affected.
- Version 0.8.39 is unaffected.