log4j vulnerabilities
CVEs whose affected-version data names the log4j package. Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.
2 CVEsRSS
CVE-2026-34481High· 7.5Apache Log4j's JsonTemplateLayout https://logging.apache.org/log4j/2.x/manual/json-template-layout.html , in versions up to and including 2.25.3, produces invalid JSON output when log events contain non-finite floating-point values (NaN…
Apache Log4j's JsonTemplateLayout https://logging.apache.org/log4j/2.x/manual/json-template-layout.html , in versions up to and including 2.25.3, produces invalid JSON output when log events contain non-finite floating-point values (NaN…
▾ Twilightapache · log4jEPSS 0.69%via NVD
CVE-2021-45105Medium· 5.90dayPoCApache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups
Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial …
▾ Midnightapache · log4jEPSS 100%via NVD