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IBM disclosed CVE-2026-14529, a critical server-side request forgery vulnerability in IBM WebSphere Application Server and WebSphere Application Server Liberty that is remotely exploitable when the SIP container feature sipServlet-1.1 is enabled. The flaw affects WebSphere Application Server 8.5 and 9.0, along with Liberty versions 17.0.0.3 through 26.0.0.8, and carries a CVSS 3.1 score of 9.4. IBM mapped the issue to CWE-306 and said exposed deployments could be at significant risk if the SIP feature is active.
IBM said there are no workarounds for the issue and urged customers to apply interim fixes associated with APAR PH72053 or DT495928, or upgrade to fixed releases expected in 3Q2026. Additional mitigation guidance recommends disabling the SIP container where it is not required and applying the latest security patches to reduce exposure until permanent fixes are deployed.
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IBM published a security bulletin for CVE-2026-14529, a critical server-side request forgery vulnerability affecting WebSphere Application Server 8.5 and 9.0 and WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.8 when the SIP container feature is enabled. IBM assigned the flaw a CVSS 3.1 score of 9.4, said there are no workarounds, and recommended interim fixes tied to APAR PH72053 or DT495928.
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IBM disclosed multiple vulnerabilities in **WebSphere Application Server** and **WebSphere Application Server Liberty**, including denial-of-service issues tracked as `CVE-2026-9071` and `CVE-2026-9320`, and an HTTP request smuggling flaw, `CVE-2026-8646`, rated up to **CVSS 8.1**. The affected products include WebSphere Application Server **8.5** and **9.0**, along with WebSphere Liberty versions **17.0.0.3 through 26.0.0.6** when certain servlet or websocket features are enabled. IBM said no workarounds or mitigations are available and advised customers to apply interim fixes for **APAR PH71631** and **PH71370** or upgrade to fix packs **26.0.0.7**, **9.0.5.29**, or **8.5.5.30**. A related high-severity issue, `CVE-2026-9072`, affects **IBM i 7.3 through 7.6** in environments using WebSphere Application Server or Liberty with **Intelligent Management** and the **WebSphere WebServer Plug-in**. IBM said an attacker who can impersonate backend servers and send crafted responses to the plug-in could trigger **remote code execution** and **denial of service**, also with a **CVSS 8.1** rating. Recommended actions include installing the latest WebSphere security updates, updating IBM i to current levels, and reviewing the secure configuration of Intelligent Management and the WebSphere WebServer Plug-in.
Jun 29, 2026
IBM disclosed a critical `CVE-2026-8633` vulnerability in WebSphere Application Server and WebSphere Liberty deployments that use the optional **Web Server Plug-ins** component, warning that unauthenticated attackers can send specially crafted HTTP requests to execute arbitrary commands on the host. The flaw, classified as improper control of code generation (`CWE-94`) and rated `CVSS 9.8`, affects WebSphere Application Server traditional and Liberty versions `8.5` and `9.0`, with successful exploitation potentially leading to full system compromise. IBM also patched `CVE-2026-8620`, an HTTP request smuggling issue that could let attackers bypass security controls and manipulate backend communications in affected environments. The company said both issues are addressed through **APAR `PH71342`** and related fix packs, and advised administrators to apply the fixes, validate updates in non-production environments, monitor HTTP traffic, restrict exposure of plug-in endpoints, use WAF protections, and perform threat hunting for signs of exploitation.
Jun 29, 2026
IBM disclosed two vulnerabilities in traditional **IBM WebSphere Application Server** affecting versions **9.0** and **8.5**, led by **CVE-2026-14512**, a **pre-authentication unsafe deserialization** flaw rated **CVSS 9.8**. The issue could allow a remote attacker to **bypass authentication** or achieve **arbitrary code execution** without user interaction, creating a high-risk path to full compromise of exposed WebSphere environments. IBM also identified **CVE-2026-14528**, a **CVSS 7.4** flaw that could expose sensitive information through insertion into log files. The company directed customers to apply the interim fix for **APAR PH72166** or upgrade to **Fix Pack 9.0.5.29+** for WebSphere 9.0 and **Fix Pack 8.5.5.31+** for WebSphere 8.5, and said **no workarounds or mitigations are available**.
Jul 29, 2026