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Netty Vulnerable to Cache Poisoning and Information Disclosure via CORS Vary Header Overwrite

Netty Vulnerable to Cache Poisoning and Information Disclosure via CORS Vary Header Overwrite

CVE-2026-59903Published 1 week agoUpdated 1 week agoSource: OSV

Affected packages

  • io.netty:netty-codec-http4.2.0.Final → 4.2.17.Final

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.