# CVE-2026-123628: IBM webMethods Integration Server is vulnerable to sensitive information disclousure via admin/server/env API request.

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

IBM webMethods Integration Server 10.15 and 11.1 could allow a remote attacker to obtain sensitive information due to an exposure of sensitive server-side environment variables and Java runtime details.

## Remediation

- fix: IBM strongly recommends addressing the vulnerability now by applying the mentioned core fixes or later core fixes for the affected versions and following the respective fix readme document.



IS_10.15_Core_Fix27 or later

IS_11.1_Core_Fix12 or later





Fixes can be downloaded and installed via IBM webMethods Update Manager. Refer to  How to Download webMethods Software https://www.ibm.com/support/pages/node/7232491 (source: CNA: ibm)
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: ibm) — https://www.ibm.com/support/pages/node/7296466

## Affected products and versions

- IBM / webMethods Integration Server: ≥ 10.15; ≤ 10.15_Core_Fix2 (affected, custom); ≥ 11.1; ≤ 11.1_Core_Fix11 (affected, custom). Source: CNA: ibm

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: CNA: ibm

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: NVD: psirt@us.ibm.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-200

## Exploit evidence

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

## References

- https://www.ibm.com/support/pages/node/7296466 (CNA: ibm; vendor-advisory, patch)

- https://www.ibm.com/support/pages/node/7296466 (psirt@us.ibm.com)

## Provenance

- CNA: ibm: https://www.cve.org/CVERecord?id=CVE-2026-123628; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-123628; retrieved 2026-11-14; source updated 2026-11-13

Revision: 57519027867e56a41cad8262095e7429c08d8d7d4bffb206251e81075eb0fa42

Canonical: https://y2.dev/cve/CVE-2026-123628

## 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.