# CVE-2026-126757: Moonshot AI Kimi Code Web UI index-HU0LCM-X.js isOriginAllowed redirect

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

A security vulnerability has been detected in Moonshot AI Kimi Code up to 2.5.2. This affects the function isOriginAllowed of the file apps/kimi-code/dist-web/assets/index-HU0LCM-X.js of the component Web UI. Such manipulation of the argument kimi_origin leads to open redirect. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Moonshot AI / Kimi Code: 2.5.0 (affected); 2.5.1 (affected); 2.5.2 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 5.3 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P; source: CNA: VulDB

- CVSS 3.1: 4.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 3.0: 4.3 (medium); CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 2.0: 5 (medium); AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:C; source: CNA: VulDB

- CVSS 4.0: 2.1 (low); CVSS:4.0/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; source: NVD: cna@vuldb.com

- CVSS 3.1: 4.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N; source: NVD: cna@vuldb.com

- CVSS 2.0: 5 (medium); AV:N/AC:L/Au:N/C:N/I:P/A:N; source: NVD: cna@vuldb.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-601

## Exploit evidence

- exploit: https://mcniyfj5bw9b.feishu.cn/docx/IZ43dY0wzoDtnUxGgy7cQ6xcnFh (CNA: VulDB)

## References

- https://vuldb.com/vuln/435867 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/435867/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-126757 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1033259 (CNA: VulDB; third-party-advisory)

- https://mcniyfj5bw9b.feishu.cn/docx/IZ43dY0wzoDtnUxGgy7cQ6xcnFh (CNA: VulDB; exploit)

- https://mcniyfj5bw9b.feishu.cn/docx/IZ43dY0wzoDtnUxGgy7cQ6xcnFh (cna@vuldb.com)

- https://vuldb.com/cve/CVE-2026-126757 (cna@vuldb.com)

- https://vuldb.com/submit/1033259 (cna@vuldb.com)

- https://vuldb.com/vuln/435867 (cna@vuldb.com)

- https://vuldb.com/vuln/435867/cti (cna@vuldb.com)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-126757; retrieved 2026-11-11; source updated 2026-11-11

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-126757; retrieved 2026-11-12; source updated 2026-11-11

Revision: bfda8cf7f64afe2f2ed34f1ce64a3b66fcfda8642b1813bb07dc90e950eaebc1

Canonical: https://y2.dev/cve/CVE-2026-126757

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.