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Package details: pkg:maven/io.netty/netty-codec-http2@4.1.132.Final
purl pkg:maven/io.netty/netty-codec-http2@4.1.132.Final
Next non-vulnerable version None.
Latest non-vulnerable version None.
Risk score 3.4
Vulnerabilities affecting this package (15)
Advisory Summary Fixed in package version
CVE-2026-42587
Aliases:
GHSA-f6hv-jmp6-3vwv
Netty: HttpContentDecompressor maxAllocation bypass when Content-Encoding set to br/zstd/snappy leads to decompression bomb DoS `HttpContentDecompressor` accepts a `maxAllocation` parameter to … There are no reported fixed by versions.
CVE-2026-47244
Aliases:
GHSA-5x3r-wrvg-rp6q
Netty HTTP/2: Advertised MAX_CONCURRENT_STREAMS are not enforced DefaultHttp2Connection.DefaultEndpoint initialises maxActiveStreams/maxStreams to Integer.MAX_VALUE, and Http2Settings never inserts SETTINGS_MAX_CONCURRENT_STREAMS by default (Http2Settings.java:305-307 … There are no reported fixed by versions.
CVE-2026-50560
Aliases:
GHSA-563q-j3cm-6jxm
Netty susceptible to HTTP/2 Reset Attack with different on-the-wire signature Netty HTTP/2 max header size handling produces attack similar to … There are no reported fixed by versions.
CVE-2026-59900
Aliases:
GHSA-c69g-56f8-xwqj
Netty: [codec-http2] Lack of Host Header Deduplication in HTTP/2→HTTP/1.x Translation Leads to Request Routing Bypass Netty's HTTP/2-to-HTTP/1.x translation layer (`Http2StreamFrameToHttpObjectCodec` … There are no reported fixed by versions.
CVE-2026-56819
Aliases:
GHSA-93wv-jw9v-4972
Netty: HTTP/2 decompression leaks ByteBuf reference count when the decompressor channel is already closed (Direct memory leak / OOM DoS) … There are no reported fixed by versions.
GHSA-5x3r-wrvg-rp6q
Aliases:
CVE-2026-47244
Netty HTTP/2: Advertised MAX_CONCURRENT_STREAMS are not enforced ### Impact DefaultHttp2Connection.DefaultEndpoint initialises maxActiveStreams/maxStreams to Integer.MAX_VALUE, and Http2Settings never inserts SETTINGS_MAX_CONCURRENT_STREAMS by …
4.2.15.Final
Vulnerable
4.1.135.Final
Vulnerable
4.1.135.Final
Vulnerable
GHSA-563q-j3cm-6jxm
Aliases:
CVE-2026-50560
Netty susceptible to HTTP/2 Reset Attack with different on-the-wire signature ### Summary Netty HTTP/2 max header size handling produces attack …
4.2.15.Final
Vulnerable
4.1.135.Final
Vulnerable
4.1.135.Final
Vulnerable
GHSA-c2gf-v879-257j
Aliases:
CVE-2026-48043
netty-codec-http2: ByteBuf Reference-Count Leak in DelegatingDecompressorFrameListener Leads to Memory Exhaustion ### Impact The `DelegatingDecompressorFrameListener` class orchestrates HTTP/2 decompression by embedding …
4.1.135.Final
Vulnerable
4.2.15.Final
Vulnerable
4.1.135.Final
Vulnerable
4.2.15.Final
Vulnerable
4.1.135.Final
Vulnerable
4.2.15.Final
Vulnerable
4.1.135.Final
Vulnerable
4.2.15.Final
Vulnerable
4.1.135.Final
Vulnerable
4.2.15.Final
Vulnerable
4.1.135.Final
Vulnerable
4.2.15.Final
Vulnerable
4.1.135.Final
Vulnerable
4.2.15.Final
Vulnerable
4.1.135.Final
Vulnerable
4.2.15.Final
Vulnerable
4.1.135.Final
Vulnerable
GHSA-f6hv-jmp6-3vwv
Aliases:
CVE-2026-42587
Netty: HttpContentDecompressor maxAllocation bypass when Content-Encoding set to br/zstd/snappy leads to decompression bomb DoS ## Summary `HttpContentDecompressor` accepts a `maxAllocation` …
4.2.13.Final
Vulnerable
4.1.133.Final
Vulnerable
4.1.133.Final
Vulnerable
GHSA-c69g-56f8-xwqj
Aliases:
CVE-2026-59900
Netty: [codec-http2] Lack of Host Header Deduplication in HTTP/2→HTTP/1.x Translation Leads to Request Routing Bypass Netty's HTTP/2-to-HTTP/1.x translation layer (`Http2StreamFrameToHttpObjectCodec` …
4.2.16.Final
Vulnerable
4.1.136.Final
Vulnerable
4.1.136.Final
Vulnerable
GHSA-93wv-jw9v-4972
Aliases:
CVE-2026-56819
Netty: HTTP/2 decompression leaks ByteBuf reference count when the decompressor channel is already closed (Direct memory leak / OOM DoS) …
4.2.16.Final
Vulnerable
4.1.136.Final
Vulnerable
4.1.136.Final
Vulnerable
CVE-2026-48043
Aliases:
GHSA-c2gf-v879-257j
netty-codec-http2: ByteBuf Reference-Count Leak in DelegatingDecompressorFrameListener Leads to Memory Exhaustion The `DelegatingDecompressorFrameListener` class orchestrates HTTP/2 decompression by embedding a per-stream … There are no reported fixed by versions.
CVE-2026-93569
Aliases:
GHSA-cg2g-fxr4-mg8m
Inconsistent Interpretation of HTTP Requests A flaw was found in Netty. A remote unauthenticated attacker can exploit a vulnerability in … There are no reported fixed by versions.
CVE-2026-93568
Aliases:
GHSA-w6j8-x45j-w75f
Improper Input Validation A flaw was found in Netty. A remote attacker could exploit this vulnerability by sending specially crafted … There are no reported fixed by versions.
CVE-2026-93567
Aliases:
GHSA-45h4-vhwh-fmhg
Improper Input Validation A flaw was found in Netty's HTTP/2 codec. When converting HTTP/1 CONNECT requests to HTTP/2, the component … There are no reported fixed by versions.
Vulnerabilities fixed by this package (1)

Advisory Summary Aliases
GHSA-w9fj-cfpg-grvv
Netty HTTP/2 CONTINUATION Frame Flood DoS via Zero-Byte Frame Bypass ### Summary A remote user can trigger a Denial of … CVE-2026-33871