# CVE-2026-126757: Moonshot AI Kimi Code open redirect in Web UI

Source: https://junglewise.ai/threats/cve-2026-126757-a-security-vulnerability-has-been-detected-in-moonshot-ai-kimi  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-11. Updated: 2026-11-12  
License: CC BY 4.0 with a link back

CVE-2026-126757 · Severity: medium · CVSS 4.3 · Published 2026-11-11

Moonshot AI's Kimi Code is a web-based code editor and development tool. An open redirect vulnerability in the Web UI allows attackers to redirect users to malicious websites by manipulating the kimi_origin parameter, potentially leading to phishing attacks or credential theft.

Technologies: [Moonshot AI Kimi Code](https://junglewise.ai/threats/technologies/kimi-code). Vendors: [Moonshot AI](https://junglewise.ai/threats/vendors/moonshot-ai).

## Quick answers

**Is CVE-2026-126757 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-126757 being exploited in the wild.

**How severe is CVE-2026-126757?** Medium severity, with a CVSS score of 4.3, published 11 November 2026.

**Which products and versions are affected?** Moonshot AI Kimi Code up to 2.5.2.

**Is there a fix for CVE-2026-126757?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-126757 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-126757?** Check whether you run Moonshot AI Kimi Code at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The isOriginAllowed function in the Web UI component (apps/kimi-code/dist-web/assets/index-HU0LCM-X.js) fails to properly validate the kimi_origin parameter, allowing remote attackers to inject arbitrary redirect URLs. The vulnerability requires user interaction to click a malicious link but can be exploited without authentication. A fix or patch status from the vendor is unknown.

## Affected products

- Moonshot AI Kimi Code up to 2.5.2

## Timeline

- 2026-11-11: disclosed: Publicly disclosed vulnerability; vendor did not respond to early notification

## References

- [https://mcniyfj5bw9b.feishu.cn/docx/IZ43dY0wzoDtnUxGgy7cQ6xcnFh](https://mcniyfj5bw9b.feishu.cn/docx/IZ43dY0wzoDtnUxGgy7cQ6xcnFh)
- [https://vuldb.com/cve/CVE-2026-126757](https://vuldb.com/cve/CVE-2026-126757)

## Related threats

- [Moonshot AI Kimi Code reliance on untrusted input in WorkspaceDirsService](https://junglewise.ai/threats/cve-2026-126758-a-vulnerability-was-detected-in-moonshot-ai-kimi-code-up-to-2-0)
- [Moonshot AI Kimi Code arbitrary command injection in MCP configuration loader](https://junglewise.ai/threats/cve-2026-95660-a-security-flaw-has-been-discovered-in-moonshot-ai-kimi-code-up)
- [MoonshotAI Kimi Code SSRF bypass in FetchURL tool](https://junglewise.ai/threats/cve-2026-17534-moonshotai-kimi-code-ssrf-bypass-in-fetchurl-tool)