# CVE-2026-125359: Mediary Scout before 2026.11.05 SSRF via PanSou Search Source Setting

Status: published. Published: 2026-11-09. Updated: 2026-11-09.

Mediary Scout before 2026.11.05 contains a server-side request forgery vulnerability that allows any authenticated user, including non-owner accounts, to set an arbitrary PanSou base URL via savePanSouBaseUrlAction without role checks. Attackers can trigger probePanSou() to send server-side POST requests to internal hosts and use distinct error responses as an oracle for internal host and port discovery.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/fancydirty/mediary-scout/commit/9cb9ab5eea492bc8f61f5c4d63f9c6b6800f7e1f

## Affected products and versions

- fancydirty / mediary-scout: ≥ 0; < 2026.11.05 (affected, custom). Source: CNA: VulnCheck

## Severity and prioritization

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

- CVSS 3.1: 4.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-918

## Exploit evidence

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

## References

- https://github.com/fancydirty/mediary-scout/issues/366 (CNA: VulnCheck; issue-tracking)

- https://github.com/fancydirty/mediary-scout (CNA: VulnCheck; product)

- https://github.com/fancydirty/mediary-scout/blob/v2026.10.29/apps/web/lib/pansou-probe.ts#L18-L34 (CNA: VulnCheck; technical-description)

- https://github.com/fancydirty/mediary-scout/commit/9cb9ab5eea492bc8f61f5c4d63f9c6b6800f7e1f (CNA: VulnCheck; patch)

- https://github.com/fancydirty/mediary-scout/releases/tag/v2026.11.05 (CNA: VulnCheck; release-notes)

- https://www.vulncheck.com/advisories/mediary-scout-before-2026.11.05-ssrf-via-pansou-search-source-setting (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-125359; retrieved 2026-11-10; source updated 2026-11-09

Revision: 334afc8d08cd2dd22227439b9275a536ba0511650e5bbe0891f5cf6de6e544b9

Canonical: https://y2.dev/cve/CVE-2026-125359

## 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.