MODERATEMaven →
Apache Log4j API: Improper encoding of non-finite floating-point values during MapMessage JSON serialization
Apache Log4j API: Improper encoding of non-finite floating-point values during MapMessage JSON serialization
Affected packages
- org.apache.logging.log4j:log4j-api— 2.13.1 → 2.25.5
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-49844
- https://github.com/apache/logging-log4j2/pull/4163
- https://github.com/apache/logging-log4j2/commit/19edb23e162d6c728a8c2221a240037d389ed300
- https://github.com/apache/logging-log4j2/commit/feadf8eb0b4acb6ddfa4c0ab2bbc6d88b8e12d82
- https://github.com/apache/logging-log4j2
- https://github.com/apache/logging-log4j2/releases/tag/rel/2.25.5
- https://github.com/apache/logging-log4j2/releases/tag/rel/2.26.1
- https://logging.apache.org/cyclonedx/vdr.xml
- https://logging.apache.org/log4j/2.x/manual/json-template-layout.html#event-template-resolver-message
- https://logging.apache.org/security.html#CVE-2026-49844
Structured record: https://osv.dev/vulnerability/GHSA-qv9r-c865-cp47
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