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Netty: HttpContentDecompressor maxAllocation bypass when Content-Encoding set to br/zstd/snappy leads to decompression bomb DoS

Netty: HttpContentDecompressor maxAllocation bypass when Content-Encoding set to br/zstd/snappy leads to decompression bomb DoS

CVE-2026-42587Published 4 months agoUpdated 5 days agoSource: OSV

Affected packages

  • io.netty:netty-codec-http— 4.2.0.Alpha1 → 4.2.13.Final
  • io.netty:netty-codec-http2— 4.2.0.Alpha1 → 4.2.13.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.

Sources

Structured record: https://osv.dev/vulnerability/GHSA-f6hv-jmp6-3vwv

Recommended response stack

Snyk — Scan your dependencies in CI and fix this vulnerability.→

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Netty: HttpContentDecompressor maxAllocation bypass when Content-Encoding set to br/zstd/snappy leads to decompression bomb DoS | HackTribune