# CVE-2026-125377: Pig before 4.1.2 Missing Authorization Exposes OAuth2 Client Secrets via /client

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

Pig before 4.1.2 contains a missing authorization vulnerability in SysClientController that allows authenticated users without client-management permission to retrieve OAuth2 client secrets via GET /client/{clientId} and GET /client/export. Attackers can fetch clientSecret values for seed clients like pig, app, and daemon or export the client table, then obtain tokens using those clients' configured grant types.

## 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/pig-mesh/pig/commit/0fffbf14d393f30a0272a3cdf0a54efd45e0d9e3

## Affected products and versions

- pig-mesh / pig (com.pig4cloud/pig): ≥ 0; < 4.1.2 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 7.1 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 6.5 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-862

## Exploit evidence

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

## References

- https://github.com/pig-mesh/pig/issues/1298 (CNA: VulnCheck; issue-tracking)

- https://github.com/pig-mesh/pig (CNA: VulnCheck; product)

- https://github.com/pig-mesh/pig/blob/a0d273afd3adc6678b065c0f2d25433541343ad7/pig-upms/pig-upms-biz/src/main/java/com/pig4cloud/pig/admin/controller/SysClientController.java#L69-L82 (CNA: VulnCheck; technical-description)

- https://github.com/pig-mesh/pig/commit/0fffbf14d393f30a0272a3cdf0a54efd45e0d9e3 (CNA: VulnCheck; patch)

- https://github.com/pig-mesh/pig/releases/tag/v4.1.2 (CNA: VulnCheck; release-notes)

- https://www.vulncheck.com/advisories/pig-before-4.1.2-missing-authorization-exposes-oauth2-client-secrets-via-client (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-125377; retrieved 2026-11-10; source updated 2026-11-09

Revision: 9e23cd08108d5d9c26eefe2bb1fdc9745835df5953ab523aa1acc5aaf684c0d0

Canonical: https://y2.dev/cve/CVE-2026-125377

## 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.