SB2026101439 - Multiple vulnerabilities in IBM App Connect Enterprise
Published: October 14, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Use of Non-Canonical URL Paths for Authorization Decisions (CVE-ID: CVE-2026-8384)
CWE-ID: CWE-647 - Use of Non-Canonical URL Paths for Authorization Decisions
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to bypass path-based security constraints.
The vulnerability exists due to use of non-canonical url paths for authorization decisions in org.eclipse.jetty.util.URIUtil.canonicalPath() when processing request paths containing semicolon path parameters followed by slash-dot segments. A remote attacker can send a specially crafted request path to bypass path-based security constraints.
This can occur when Jetty SecurityHandler.PathMapped is used to protect a path prefix such as /admin/*, causing the non-normalized canonical path to be matched against security constraints.
2) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2026-19203)
CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
CVSSv4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.
The vulnerability exists due to inconsistent interpretation of HTTP requests in the HTTP chunk extension parser when processing a crafted chunked HTTP request containing a line feed in a chunk extension. A remote attacker can send a specially crafted chunked HTTP request to perform HTTP request smuggling attacks.
RFC7230 and RFC2616 compliance modes permit the line-feed condition.
Remediation
Install update from vendor's website.