Netty versions 4.1.133.Final through 4.1.137.Final and 4.2.13.Final through 4.2.17.Final fail to properly validate the final transfer coding in the Transfer-Encoding header, allowing attackers to smuggle requests by using malformed encoding declarations. Attackers can split Trans...
Product
redhat/netty-codec vulnerabilities
9 published CVES affecting redhat/netty-codec, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 9
- Critical
- 0
- High
- 8
- Medium
- 1
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Latest redhat/netty-codec CVEs
Newest publication first
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MediumCVSS 6.9 EPSS 0.28%
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CVE-2026-59903 Netty: Cache Poisoning and Information Disclosure via CORS Vary Header Overwrite
PublishedHighCVSS 7.5 EPSS 0.32%Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, io.netty.handler.codec.http.cors.CorsHandler setVaryHeader replaces application Vary headers such as Authorization or Cookie with Origin, allowing a caching proxy or CDN...
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CVE-2026-50011 Netty has unbounded pre-allocation in RedisArrayAggregator from RESP array length
PublishedHighCVSS 7.5 EPSS 0.46%Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, RedisArrayAggregator pre-allocates ArrayList with initial capacity equal to the RESP array element count declared in an array header. That c...
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HighCVSS 8.7 EPSS 0.63%
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the HAProxy PROXY protocol v2 codec in netty leaks native or heap memory on every connection when a client sends a syntactically valid heade...
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HighCVSS 8.7 EPSS 0.74%
Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, the RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array...
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HighCVSS 7.5 EPSS 0.62%
Netty is a network application framework for development of protocol servers and clients. In netty-codec-haproxy prior to versions 4.1.135.Final and 4.2.15.Final, when decoding a PP2_TYPE_SSL TLV, HAProxyMessage.readNextTLV() first calls header.retainedSlice(header.readerIndex(),...
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HighCVSS 7.5 EPSS 0.46%
Netty is a network application framework for development of protocol servers and clients. In netty-codec-redis prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can cause DoS by sending crafted Redis payloads across multiple connections without \r\n. This exhausts the...
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CVE-2026-44250 Netty: Memory Exhaustion in RedisArrayAggregator due to Deeply Nested Arrays
PublishedHighCVSS 7.5 EPSS 0.46%Netty is a network application framework for development of protocol servers and clients. In netty-codec-redis prior to versions 4.1.135.Final and 4.2.15.Final, an attacker can cause DoS by sending a crafted Redis payload with deeply nested arrays. This forces the server to alloc...
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HighCVSS 7.5 EPSS 0.46%
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength (up to 32 MB per block) before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload...
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.