org.apache.logging.log4j:log4j-core vulnerabilities
CVEs whose affected-version data names the org.apache.logging.log4j:log4j-core package (maven). Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
2 CVEsRSS
CVE-2026-34479MediumApache Log4j 1 to Log4j 2 bridge: silent log event loss in Log4j1XmlLayout due to unescaped XML 1.0 forbidden characters
Apache Log4j 1 to Log4j 2 bridge: silent log event loss in Log4j1XmlLayout due to unescaped XML 1.0 forbidden characters
▾ Sunlitapache · org.apache.logging.log4j:log4j-coreEPSS 0.53%via GHSA
CVE-2021-45046Critical· 9.0CISA KEVPoCIncomplete fix for Apache Log4j vulnerability
Incomplete fix for Apache Log4j vulnerability
▾ Hadalapache · org.apache.logging.log4j:log4j-coreEPSS 100%via GHSA