CVE-2026-48059 Netty HAProxy: Unbalanced Reference Count in Nested PP2_TYPE_SSL TLV Parsing Leads to Memory Exhaustion

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 header containing nest...

EUVD-2026-36432

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 PP2TYPESSL TLV, HAProxyMessage.readNextTLV first calls header.retainedSliceheader.readerIndex, length and only then...

CVE-2026-44893 Netty: HAProxy SSL TLV parsing leaks retained slice on invalid TLV length

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 PP2TYPESSL TLV, HAProxyMessage.readNextTLV first calls header.retainedSliceheader.readerIndex, length and only then...

CVE-2026-44893 Netty: HAProxy SSL TLV parsing leaks retained slice on invalid TLV length

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 PP2TYPESSL TLV, HAProxyMessage.readNextTLV first calls header.retainedSliceheader.readerIndex, length and only then...

ac.intave:cloud-protocol (>=0.0.1, <=0.0.11), ai.agentican:agentican-quarkus-deployment (>=0.1.0-alpha.1, <=0.1.0-alpha.4) +10044 more potentially affected by CVE-2026-44893 via io.netty:netty-codec-haproxy (>=4.1.21.final, <=4.1.134.final)

io.netty:netty-codec-haproxy MAVEN version =4.1.21.final, =0.0.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.3, =0.1.0, =0.1.0, =def544ccef5f753238ecc4adfc2eaa7d2fc36d53-0.0.91,...

CVE-2026-44893 Netty: HAProxy SSL TLV parsing leaks retained slice on invalid TLV length

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 PP2TYPESSL TLV, HAProxyMessage.readNextTLV first calls header.retainedSliceheader.readerIndex, length and only then...

CVE-2026-44893

Netty CVE-2026-44893 affects netty-codec-haproxy prior to 4.1.135.Final and 4.2.15.Final. During PP2_TYPE_SSL TLV decoding, HAProxyMessage.readNextTLV() retains a slice before reading the client (1 byte) and verify (4 bytes). If TLV length

CVE-2026-44893

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 PP2TYPESSL TLV, HAProxyMessage.readNextTLV first calls "header.retainedSliceheader.readerIndex, length" and only then...

Memory Leak

io.netty, netty-codec-haproxy is vulnerable to a memory leak.The vulnerability is due to improper handling of nested PP2TYPESSL TLVs during successful parsing, which leaves the underlying pooled ByteBuf permanently pinned in memory, allowing an attacker to repeatedly send crafted valid headers an...

Linux Distros Unpatched Vulnerability : CVE-2026-44893

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Linux Distros Unpatched Vulnerability : CVE-2026-48059

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2026-48059: Missing Release of Memory after Effective Lifetime

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 header containing nest...

CVE-2026-44893: Improper Check or Handling of Exceptional Conditions

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 PP2TYPESSL TLV, HAProxyMessage.readNextTLV first calls header.retainedSliceheader.readerIndex, length and only then...

Missing Release of Memory after Effective Lifetime

Overview Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime in the parsing process of nested PP2TYPESSL TLVs within the HAProxy PROXY protocol v2 codec. An attacker can cause memory exhaustion by sending syntactically valid headers containing...

Netty HAProxy: Unbalanced Reference Count in Nested PP2_TYPE_SSL TLV Parsing Leads to Memory Exhaustion

Impact The HAProxy PROXY protocol v2 codec in netty leaks native or heap memory on every connection when a client sends a syntactically valid header containing nested PP2TYPESSL TLVs type-length-value records at depth two or greater. The leak occurs on the successful parse path — no exception is...

ai.spice:spiceai (0.6.0), ch.zzeekk.spark:spark-temporalquery_2.13 (4.0.0) +1210 more potentially affected by CVE-2026-48059 via io.netty:netty-codec-haproxy (>=4.2.0.final, <=4.2.14.final)

io.netty:netty-codec-haproxy MAVEN version =4.2.0.final, =4.2.14.final is affected by a known vulnerability. The following packages have a transitive dependency on io.netty:netty-codec-haproxy and may be impacted: - ai.spice:spiceai 0.6.0 - ch.zzeekk.spark:spark-temporalquery2.13 4.0.0 -...

ac.intave:cloud-protocol (>=0.0.1, <=0.0.11), ai.agentican:agentican-quarkus-deployment (>=0.1.0-alpha.1, <=0.1.0-alpha.4) +10044 more potentially affected by CVE-2026-48059 via io.netty:netty-codec-haproxy (>=4.1.21.final, <=4.1.134.final)

io.netty:netty-codec-haproxy MAVEN version =4.1.21.final, =0.0.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.1, =0.1.0-alpha.3, =0.1.0, =0.1.0, =def544ccef5f753238ecc4adfc2eaa7d2fc36d53-0.0.91,...

ai.spice:spiceai (0.6.0), ch.zzeekk.spark:spark-temporalquery_2.13 (4.0.0) +1210 more potentially affected by CVE-2026-48059 via io.netty:netty-codec-haproxy (>=4.2.0.final, <=4.2.14.final)

io.netty:netty-codec-haproxy MAVEN version =4.2.0.final, =4.2.14.final is affected by a known vulnerability. The following packages have a transitive dependency on io.netty:netty-codec-haproxy and may be impacted: - ai.spice:spiceai 0.6.0 - ch.zzeekk.spark:spark-temporalquery2.13 4.0.0 -...

CVE-2026-45558

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, the HAProxy section-save endpoints POST /api/service/haproxy//section/ and the PUT / global / defaults variants accept a JSON option field that is not validated, not escaped, and ...

CVE-2026-45569 Roxy-WI: Path-traversal patch in commit d4d10006 is a no-op (tuple-membership bug)

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, ommit d4d10006 "Expand validation to block .. in configfilename and configver for improved security" added a line in app/modules/config/config.py:462. This is tuple-membership, no...