MODERATEMaven →
Apache Log4j Core: `verifyHostName` attribute silently ignored in TLS configuration
Apache Log4j Core: `verifyHostName` attribute silently ignored in TLS configuration
Affected packages
- org.apache.logging.log4j:log4j-core— 2.12.0 → 2.25.4
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-2026-34477
- https://github.com/apache/logging-log4j2/pull/4075
- https://github.com/apache/logging-log4j2
- https://lists.apache.org/thread/lkx8cl46t2bvkcwfcb2pd43ygc097lq4
- https://logging.apache.org/cyclonedx/vdr.xml
- https://logging.apache.org/log4j/2.x/manual/appenders/network.html#SslConfiguration-attr-verifyHostName
- https://logging.apache.org/security.html#CVE-2026-34477
Structured record: https://osv.dev/vulnerability/GHSA-6hg6-v5c8-fphq
Recommended response stack
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