IBM WebSphere Application Server is affected by an HTTP request smuggling vulnerability

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Affected scope and exposure questions

The current feed maps IBM/WebSphere Application Server (generic). Check affected ranges and fixed versions before updating.

Recommended response

1. 1Check inventory. Check lockfiles and deployed manifests for IBM/WebSphere Application Server.
2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

1. Published upstream

   Sep 18, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

2. Source modified

   Sep 18, 2026

   Evidence: source:cvelist:source_dates:source-dates:record

3. First seen by HOL

   Sep 18, 2026

Sources and claim methodology

• Source referenceibm.com

Related CVEs

• Io.netty/netty-codec-http: netty: http request smuggling via post-digit whitespace in chunk-size parsingAlso CWE-444
• Suricata ippair: hash collision can cause incorrect state reuse across IPv4 and IPv6Same generic ecosystem
• Suricata windows: unquoted LocalSystem service ImagePath can allow local privilege escalationSame generic ecosystem
• Suricata dhcp: unbounded transactions in unidirectional traffic can lead to resource exhaustionSame generic ecosystem
• Suricata datasets: NULL pointer dereference in JSON/NDJSON dataset loadingSame generic ecosystem
• Suricata swf: heap buffer overflow in SWF decompression depth handlingSame generic ecosystem