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