PT-2026-51258 · Kortix Ai · Suna

Trebledj · Published 2026-06-21 · Updated 2026-06-21 · CVE-2026-12811

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions kortix-ai suna versions prior to 0.8.39

Description A flaw in the Auth Endpoint component allows for remote cross-site scripting (XSS), which is a technique where malicious scripts are injected into trusted websites. The issue exists within the router.replace() and router.push() functions located in the apps/frontend/src/app/auth/page.tsx file. An attacker can trigger this by manipulating the returnURL argument.

Recommendations Update to version 0.8.39.

Exploit

Fix

Code Injection

XSS

Weakness Enumeration

CWE-94

CWE-79

Related Identifiers

CVE-2026-12811

Affected Products

Suna

References · 11

• 🔥 https://gist.github.com/TrebledJ/fe7241910ac0aaeff86243fc88e9ffed · Exploit
• https://github.com/kortix-ai/suna/commit/f5dec7aa0c1b8fa0125938f292c0f2430ca75f6c · Patch
• https://github.com/kortix-ai/suna/releases/tag/v0.8.39 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-12811 · Security Note
• https://twitter.com/infoflowcloud/status/2068834065365549561 · Twitter Post
• https://vuldb.com/submit/837175 · Note
• https://github.com/kortix-ai/suna · Note
• https://vuldb.com/vuln/372605 · Note
• https://twitter.com/CVEnew/status/2068833205717794835 · Twitter Post
• https://vuldb.com/vuln/372605/cti · Note
• https://vuldb.com/cve/CVE-2026-12811 · Note