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CVE-2026-44893

7.5 HIGH

Netty is a network application framework for development of protocol servers and clients

Published: 2026-06-12 · Last updated: 2026-06-15

Severity and scoring

CVSS
7.5 HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
CWE-703

Affected products

VendorProduct
nettynetty

Description

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(), length)` and only then reads the 1-byte client field and 4-byte verify field. If the attacker sets the TLV length below 5, the subsequent readByte/readInt throws IndexOutOfBoundsException. HAProxyMessageDecoder only catches HAProxyProtocolException around this call, so the IOOBE propagates and the retained slice on the pooled cumulation buffer is never released. Versions 4.1.135.Final and 4.2.15.Final patch the issue.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-50560 — Netty is a network application framework for development of protocol servers and clients (5.3 MEDIUM)
  • CVE-2026-50020 — Netty is a network application framework for development of protocol servers and clients (5.3 MEDIUM)
  • CVE-2026-50011 — Netty is a network application framework for development of protocol servers and clients (7.5 HIGH)
  • CVE-2026-50010 — Netty is a network application framework for development of protocol servers and clients (7.5 HIGH)
  • CVE-2026-50009 — Netty is a network application framework for development of protocol servers and clients (4.8 MEDIUM)

Same CWE

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  • CVE-2026-47316 — Improper Check or Handling of Exceptional Conditions vulnerability in Samsung Open Source Escargot allows Input Data Manipulation (5.5 MEDIUM)