Security Bulletin: Multiple vulnerabilities in Apache HttpComponents Core, Apache Log4j API, and Axios in IBM Content Navigator and Content Cortex for Microsoft Office

Summary Multiple vulnerabilities 13 CVEs, CVSS 5.9 to 8.3 were found in third-party components used by IBM Content Navigator and Content Cortex for Microsoft Office: Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier has a denial of service caused by uncontrolled resource...

CLEANSTART-2026-IL62744 Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5

CVE-2026-54428 affects multiple packages. Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5. See references for individual vulnerability details...

CLEANSTART-2026-WJ31300 Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5

Security vulnerability affects the cassandra-reaper-fips package. Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5...

CLEANSTART-2026-VF27664 Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5

CVE-2026-54428 affects multiple packages. Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5. See references for individual vulnerability details...

CLEANSTART-2026-SC69074 Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5

Security vulnerability affects the apache-nifi package. Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5...

CLEANSTART-2026-XZ10656 Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5

Security vulnerability affects the sonarqube package. Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5...

CLEANSTART-2026-GO38541 Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5

Security vulnerability affects the apache-nifi package. Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5...

CLEANSTART-2026-MM56894 Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5

Security vulnerability affects the sonarqube package. Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5...

PT-2026-108469

Security vulnerability affects the sonarqube package. Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5...

Security Bulletin: Denial of Service Security Vulnerability in Apache HttpComponents Core affects IBM Sterling B2B Integrator and IBM Sterling File Gateway (CVE-2026-54428)

Summary IBM Sterling B2B Integrator and IBM Sterling File Gateway have addressed the security vulnerability Vulnerability Details CVEID:CVE-2026-54428 DESCRIPTION: Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core 5.4.2 and earlier,...

Security Bulletin: IBM Integrated Analytics System (IIAS) is affected by an uncontrolled resource consumption vulnerability due to Apache HttpComponents Core

Summary Apache HttpComponents Core is used by IBM Integrated Analytics System as a Java library providing low-level HTTP transport components. CVE-2026-54399 affects the HTTP/1.1 message parser in Apache HttpComponents Core versions 5.4.2 and earlier, where insufficient limits on the number and...

Amazon Linux 2023 : javapackages-bootstrap (ALAS2023-2026-2055)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-2055 advisory. Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of...

Denial-of-service (DoS)

Apache HttpComponents Core is vulnerable to a denial-of-service DoS vulnerability. The vulnerability is due to the decoder processing oversized compressed HTTP/2 header blocks without applying the configured header list size limit until the SETTINGS acknowledgement, which allows a remote attacker...

Security Bulletin: IBM SPSS Modeler is affected by Uncontrolled Resource Consumption vulnerability in Apache HttpComponents Core

Summary Security Bulletin: IBM SPSS Modeler is affected by Uncontrolled Resource Consumption vulnerability in Apache HttpComponents Core. This has been addressed in the remediation section. Vulnerability Details CVEID:CVE-2026-54399 DESCRIPTION: Uncontrolled Resource Consumption vulnerability in...

org.apache.httpcomponents.core5/httpcore5: Apache HttpComponents Core: Denial of Service via excessive HTTP headers

A flaw was found in Apache HttpComponents Core. This uncontrolled resource consumption vulnerability in the HTTP/1.1 message parser allows a remote attacker to cause a denial of service through memory exhaustion. This can be triggered by sending messages with an excessive number of headers or...

org.apache.httpcomponents.core5/httpcore5-h2: Apache HttpComponents Core: Denial of Service via oversized HTTP/2 HPACK header blocks

A flaw was found in Apache HttpComponents Core. This vulnerability, located in the HTTP/2 HPACK decoder, allows a remote attacker to cause a denial of service. By sending oversized compressed header blocks, an attacker can exhaust memory resources before the system's configured header list size...

Security Bulletin: IBM Enterprise Build of Quarkus is affected by multiple vulnerabilities

Summary IBM Enterprise Build of Quarkus is affected by vulnerabilities in Eclipse Vert.x, Eclipse Netty, LangChain4j and Apache Httpcore Vulnerability Details CVEID:CVE-2026-54399 DESCRIPTION: Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents...

Amazon Linux 2 : httpcomponents-core, --advisory ALAS2-2026-3807 (ALAS-2026-3807)

The version of httpcomponents-core installed on the remote host is prior to 4.2.4-6. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3807 advisory. Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core 5.4.2 and...

Amazon Linux 2023 : httpcomponents-core, httpcomponents-core-javadoc (ALAS2023-2026-1948)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1948 advisory. Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of...

Important: httpcomponents-core

Issue Overview: Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core 5.4.2 and earlier, 5.5-beta1 and earlier allows an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of heade...