# CVE-2026-126316: Frappe HRMS 16.0.0 before 16.20.1 Subscription Key Exposure via Request URL

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

Frappe HRMS from 16.0.0 before 16.20.1 contains an information exposure vulnerability that places the subscription key in the query string of outbound subscription status requests. Attackers with access to proxy, server, or monitoring logs along the request path can recover the site's subscription key from recorded URLs.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- frappe / hrms: ≥ 16.0.0; < 16.20.1 (affected, semver); 16.20.1 (unaffected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 2.1 (low); CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 2.2 (low); CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N; source: CNA: VulnCheck

- CVSS 4.0: 2.1 (low); CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/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: 2.2 (low); CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-598

## Exploit evidence

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

## References

- https://github.com/frappe/hrms/security/advisories/GHSA-hphm-4mc5-m7gj (CNA: VulnCheck; vendor-advisory)

- https://www.vulncheck.com/advisories/frappe-hrms-16.0.0-before-16.20.1-subscription-key-exposure-via-request-url (CNA: VulnCheck; third-party-advisory)

- https://github.com/frappe/hrms/security/advisories/GHSA-hphm-4mc5-m7gj (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/frappe-hrms-16.0.0-before-16.20.1-subscription-key-exposure-via-request-url (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-126316; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-126316; retrieved 2026-11-13; source updated 2026-11-13

Revision: d897cc3937516e0fc55543228166d9ac2124e3594bed868983b3dac4b89973c6

Canonical: https://y2.dev/cve/CVE-2026-126316

## 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.