CVE-2026-49844

A flaw was found in Apache Log4j API. This vulnerability occurs due to improper encoding of non-finite floating-point values during JSON serialization of MapMessages, leading to invalid JSON output. An attacker who can supply a non-finite value can exploit this to cause the affected logging layou...

OESA-2026-3153 log4j security update

Log4j is a tool to help the programmer output log statements to a variety of output targets. Security Fixes: Apache Log4j's JsonTemplateLayout in versions up to and including 2.25.3 produces invalid JSON output when log events contain non-finite floating-point values NaN, Infinity, or -Infinity,...

EUVD-2026-43102

Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON. This issue affects Apache Log4j API versions 2.13.1 through 2.25.4 and version 2.26.0. The fix for CVE-2026-34481 did not cover all code paths: wh...

CVE-2026-49844

Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON. This issue affects Apache Log4j API versions 2.13.1 through 2.25.4 and version 2.26.0. The fix for CVE-2026-34481 did not cover all code paths: wh...

DEBIAN-CVE-2026-49844

Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON. This issue affects Apache Log4j API versions 2.13.1 through 2.25.4 and version 2.26.0. The fix for CVE-2026-34481 did not cover all code paths: wh...

UBUNTU-CVE-2026-49844

Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON. This issue affects Apache Log4j API versions 2.13.1 through 2.25.4 and version 2.26.0. The fix for CVE-2026-34481 did not cover all code paths: wh...

CVE-2026-49844 Apache Log4j API: Improper serialization of non-finite floating-point values in MapMessage.asJson()

Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON. This issue affects Apache Log4j API versions 2.13.1 through 2.25.4 and version 2.26.0. The fix for CVE-2026-34481 did not cover all code paths: wh...

CVE-2026-49844

CVE-2026-49844 describes an issue in the Apache Log4j API where MapMessage.asJson() can emit non-finite IEEE 754 values (NaN, Infinity, -Infinity) as bare tokens during JSON serialization. This affects Log4j API versions 2.13.1–2.25.4 and 2.26.0. The fault occurs when a MapMessage contains an att...

CVE-2026-49844

Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON. This issue affects Apache Log4j API versions 2.13.1 through 2.25.4 and version 2.26.0. The fix for CVE-2026-34481 did not cover all code paths: wh...

PT-2026-57319

Name of the Vulnerable Software and Affected Versions Apache Log4j API versions 2.13.1 through 2.25.4 Apache Log4j API version 2.26.0 Description Improper encoding of non-finite IEEE 754 floating-point values NaN, Infinity, or -Infinity during MapMessage JSON serialization produces output that is...

io.github.braully:bpp-cobranca (>=1.0.0 <=1.0.1), org.opencadc:cadc-access-control (>=1.1.21 <=1.1.31) +78 more potentially affected by CVE-2026-34479 via org.apache.logging.log4j:log4j-1.2-api (=3.0.0-beta2)

org.apache.logging.log4j:log4j-1.2-api MAVEN version =3.0.0-beta2 is affected by a known vulnerability. The following packages have a transitive dependency on org.apache.logging.log4j:log4j-1.2-api and may be impacted: - io.github.braully:bpp-cobranca =1.0.0, =1.1.21, =1.0.8, =1.2.0, =1.1.10, =1....

Security Bulletin: IBM Jazz for Service Management is vulnerable to a Apache Log4j vulnerabilities(CVE-2021-45105, CVE-2021-45046)

Summary Based on current information and analysis, IBM Jazz for Service Management does not use Apache log4j-core library which is vulnerable to CVE-2021-45105, CVE-2021-45046 . However, IBM Jazz for Service Management may be impacted because the old version of Log4j-1.2-api and Log4j-api are use...

Apache Log4j allows insecure JNDI lookups

Overview Apache Log4j allows insecure JNDI lookups that could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the vulnerable Java application using Log4j. CISA has published Apache Log4j Vulnerability Guidance and provides a Software List. Description Th...

GHSA-JFH8-C2JP-5V3Q Remote code injection in Log4j

Summary Log4j versions prior to 2.16.0 are subject to a remote code execution vulnerability via the ldap JNDI parser. As per Apache's Log4j security guide: Apache Log4j2 =2.14.1 JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and...