# CVE-2026-18195: IBM App Connect Enterprise web user interface and Administration REST API are vulnerable to html injection

Status: published. Published: 2026-11-08. Updated: 2026-11-08.

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.2, and 12.0.1.0 through 12.0.12.30 could allow a remote attacker to perform content spoofing due to improper output encoding of error messages.

## Remediation

- fix: IBM strongly recommends addressing the vulnerability/vulnerabilities now by applying the appropriate fix to IBM App Connect Enterprise

Affected Product(s)Version(s)APARRemediation / FixesIBM App Connect Enterprise13.0.1.0 - 13.0.8.2IT50120

The APAR (IT50120) is available from



 IBM App Connect Enterprise v13- Fix Pack Release 13.0.9.0 https://www.ibm.com/support/pages/download-ibm-app-connect-enterprise-13090 

IBM App Connect Enterprise12.0.1.0 - 12.0.12.30IT50120

The APAR (IT50120) is available from



 IBM App Connect Enterprise v12- Fix Pack Release 12.0.12.31 https://www.ibm.com/support/pages/download-ibm-app-connect-enterprise-1201231-fix-pack (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/7293505

## Affected products and versions

- IBM / App Connect Enterprise: ≥ 13.0.1.0; ≤ 13.0.8.2 (affected, semver); ≥ 12.0.1.0; ≤ 12.0.12.30 (affected, semver). Source: CNA: ibm

## Severity and prioritization

- CVSS 3.1: 4.2 (medium); CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N; source: CNA: ibm

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-79

## Exploit evidence

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

## References

- https://www.ibm.com/support/pages/node/7293505 (CNA: ibm; vendor-advisory, patch)

## Provenance

- CNA: ibm: https://www.cve.org/CVERecord?id=CVE-2026-18195; retrieved 2026-11-08; source updated 2026-11-08

Revision: 83e69d5ec02506d5f0d697b430a99f5eaa1920414fe4d71dcba592bb7c2c8160

Canonical: https://y2.dev/cve/CVE-2026-18195

## 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.