# CVE-2026-126941: Zipline through 4.6.2 Privilege Escalation via Missing Role Checks on User Endpoints

Status: published. Published: 2026-11-13. Updated: 2026-11-13.

Zipline through 4.6.2 contains an authorization bypass vulnerability that allows authenticated administrators to read superadmin secrets because GET /api/users and GET /api/users/:id lack the canInteract check. Attackers can retrieve plaintext totpSecret and OAuth tokens to bypass 2FA and take over superadmin accounts, while any authenticated user can enumerate other users' folders via GET /api/user/folders.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- diced / zipline: ≥ 0; ≤ 4.6.2 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.2 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 6.8 (medium); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N; source: CNA: VulnCheck

- CVSS 4.0: 8.2 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/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: disclosure@vulncheck.com

- CVSS 3.1: 6.8 (medium); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: 0.44% as of 2026-11-13; percentile 38.64%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-200

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/diced/zipline/security/advisories/GHSA-8643-cr38-p6qj (CNA: VulnCheck; vendor-advisory)

- https://www.vulncheck.com/advisories/zipline-through-4.6.2-privilege-escalation-via-missing-role-checks-on-user-endpoints (CNA: VulnCheck; third-party-advisory)

- https://github.com/diced/zipline/security/advisories/GHSA-8643-cr38-p6qj (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/zipline-through-4.6.2-privilege-escalation-via-missing-role-checks-on-user-endpoints (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-126941; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-126941; retrieved 2026-11-13; source updated 2026-11-13

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-126941; retrieved 2026-11-13; source updated Not reported

Revision: 10c96bbc67fda0985c005dd8a34b97961425c790e8ce77bf723314d787c37b6b

Canonical: https://y2.dev/cve/CVE-2026-126941

## 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.