CVE-2026-12811
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk20th percentile — higher than 20% of all known CVEs
Summary
A weakness has been identified in kortix-ai suna up to version 0.8.38, affecting the function router.replace/router.push in the file apps/frontend/src/app/auth/page.tsx of the Auth Endpoint component. Manipulating the returnURL argument can lead to cross site scripting attacks.
Risk Assessment
The attack may be launched remotely, and publicly available exploits could be used for attacks against systems using this version of the software.
Recommendation
It is advisable to upgrade to version 0.8.39, which resolves this issue. It is also important to note the lack of prior notification to users about this vulnerability.
Original NVD description (English source)
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."