CVE-2026-12811
kortix-ai suna Auth Endpoint page.tsx router.push cross site scripting
Description
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."
INFO
Published Date :
June 21, 2026, 11:16 p.m.
Last Modified :
June 23, 2026, 2:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Upgrade kortix-ai suna to version 0.8.39.
- Update the Auth Endpoint component.
- Apply the patch f5dec7aa0c1b8fa0125938f292c0f2430ca75f6c.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-12811.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-12811 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-12811
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-12811 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-12811 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 23, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-12811', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-23T13:37:34.514663Z'} -
New CVE Received by [email protected]
Jun. 21, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:kortix-ai:suna:*:*:*:*:*:*:*:*'], 'vendor': 'kortix-ai', 'modules': ['Auth Endpoint'], 'product': 'suna', 'versions': [{'status': 'affected', 'version': '0.8.0'}, {'status': 'affected', 'version': '0.8.1'}, {'status': 'affected', 'version': '0.8.2'}, {'status': 'affected', 'version': '0.8.3'}, {'status': 'affected', 'version': '0.8.4'}, {'status': 'affected', 'version': '0.8.5'}, {'status': 'affected', 'version': '0.8.6'}, {'status': 'affected', 'version': '0.8.7'}, {'status': 'affected', 'version': '0.8.8'}, {'status': 'affected', 'version': '0.8.9'}, {'status': 'affected', 'version': '0.8.10'}, {'status': 'affected', 'version': '0.8.11'}, {'status': 'affected', 'version': '0.8.12'}, {'status': 'affected', 'version': '0.8.13'}, {'status': 'affected', 'version': '0.8.14'}, {'status': 'affected', 'version': '0.8.15'}, {'status': 'affected', 'version': '0.8.16'}, {'status': 'affected', 'version': '0.8.17'}, {'status': 'affected', 'version': '0.8.18'}, {'status': 'affected', 'version': '0.8.19'}, {'status': 'affected', 'version': '0.8.20'}, {'status': 'affected', 'version': '0.8.21'}, {'status': 'affected', 'version': '0.8.22'}, {'status': 'affected', 'version': '0.8.23'}, {'status': 'affected', 'version': '0.8.24'}, {'status': 'affected', 'version': '0.8.25'}, {'status': 'affected', 'version': '0.8.26'}, {'status': 'affected', 'version': '0.8.27'}, {'status': 'affected', 'version': '0.8.28'}, {'status': 'affected', 'version': '0.8.29'}, {'status': 'affected', 'version': '0.8.30'}, {'status': 'affected', 'version': '0.8.31'}, {'status': 'affected', 'version': '0.8.32'}, {'status': 'affected', 'version': '0.8.33'}, {'status': 'affected', 'version': '0.8.34'}, {'status': 'affected', 'version': '0.8.35'}, {'status': 'affected', 'version': '0.8.36'}, {'status': 'affected', 'version': '0.8.37'}, {'status': 'affected', 'version': '0.8.38'}, {'status': 'unaffected', 'version': '0.8.39'}]}] Added Description 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." Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CWE CWE-79 Added CWE CWE-94 Added Reference https://gist.github.com/TrebledJ/fe7241910ac0aaeff86243fc88e9ffed Added Reference https://github.com/kortix-ai/suna/ Added Reference https://github.com/kortix-ai/suna/commit/f5dec7aa0c1b8fa0125938f292c0f2430ca75f6c Added Reference https://github.com/kortix-ai/suna/releases/tag/v0.8.39 Added Reference https://vuldb.com/cve/CVE-2026-12811 Added Reference https://vuldb.com/submit/837175 Added Reference https://vuldb.com/vuln/372605 Added Reference https://vuldb.com/vuln/372605/cti