AIX is vulnerable to denial of service due to zlib (CVE-2026-27171)

IBM SECURITY ADVISORY First Issued: Wed Jul 22 02:19:43 CDT 2026 The most recent version of this document is available here: https://aix.software.ibm.com/aix/efixes/security/zlibadvisory3.asc Security Bulletin: AIX is vulnerable to denial of service due to zlib CVE-2026-27171...

EulerOS Virtualization 2.10.0 : zlib (EulerOS-SA-2026-2874)

According to the versions of the zlib package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop th...

EulerOS Virtualization 2.10.1 : zlib (EulerOS-SA-2026-2843)

According to the versions of the zlib package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop th...

CVE-2026-55833 Netty SPDY zlib header block continues decoded expansion after maxHeaderSize truncation

Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, Netty SPDY header decoding continues inflating zlib-compressed header blocks after the raw header parser has exceeded maxHeaderSize and marked the frame truncated in...

CVE-2026-55833 Netty SPDY zlib header block continues decoded expansion after maxHeaderSize truncation

Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, Netty SPDY header decoding continues inflating zlib-compressed header blocks after the raw header parser has exceeded maxHeaderSize and marked the frame truncated in...

CVE-2026-55833 Netty SPDY zlib header block continues decoded expansion after maxHeaderSize truncation

Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, Netty SPDY header decoding continues inflating zlib-compressed header blocks after the raw header parser has exceeded maxHeaderSize and marked the frame truncated in...

CVE-2026-55833

Netty (network application framework) contains a vulnerability in SPDY header decoding. Prior to versions 4.1.136.Final and 4.2.16.Final, the zlib-compressed header blocks may continue inflating after the header parser exceeds maxHeaderSize, allowing a remote peer to send a small compressed HEADE...

Security Bulletin: IBM Tivoli Monitoring is included with IBM Tivoli Composite Application Manager for Applications WebSphere MQ Monitoring Agent, is affected by a security vulnerability in Perl

Summary IBM Tivoli Monitoring is included with IBM Tivoli Composite Application Manager for Applications WebSphere MQ Monitoring Agent and has remediated a vulnerability in the Zlib library. Vulnerability Details CVEID:CVE-2026-4176 DESCRIPTION: Perl versions from 5.9.4 before 5.40.4-RC1, from...

ROOT-OS-DEBIAN-11-CVE-2026-27171 CVE-2026-27171 in rootio-zlib - Patched by Root

Root has patched CVE-2026-27171 in the rootio-zlib package for Root:Debian:11. Multiple fixed versions available...

ROOT-OS-DEBIAN-11-CVE-2023-45853 CVE-2023-45853 in rootio-zlib - Patched by Root

Root has patched CVE-2023-45853 in the rootio-zlib package for Root:Debian:11. Multiple fixed versions available...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the decode function of PdfStream in PdfParser, where zlib decompression is performed without limiting the output size. An attacker can cause excessive memory consumption by...

Security update for wireshark

This update for wireshark fixes the following issues CVE-2026-5401: AFP dissector crash bsc1263756. CVE-2026-5403: SBC audio codec crash bsc1263765. CVE-2026-5404: K12 RF5 file parser crash bsc1263766. CVE-2026-5406: FC-SWILS dissector crash bsc1263754. CVE-2026-5407: SMB2 dissector infinite loop...

EulerOS 2.0 SP10 : zlib (EulerOS-SA-2026-2679)

According to the versions of the zlib packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop that has no...

EulerOS 2.0 SP10 : zlib (EulerOS-SA-2026-2720)

According to the versions of the zlib packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because x2nmodp can do right shifts within a loop that has no...

ROS-20260713-73-0028

The vulnerability of the crc32combine64 and crc32combinegen64 functions in the open-source data compression library zlib relates to the fact that the x2nmodp function may perform right shifts within a loop without a termination condition. Exploiting this vulnerability could allow an attacker to...

[SECURITY] Fedora 43 Update: perl-IO-Compress-2.221-1.fc43

This distribution provides a Perl interface to allow reading and writing of compressed data created with the zlib and bzip2 libraries. IO-Compress supports reading and writing of bzip2, RFC 1950, RFC 1951, RFC 1952 i.e. gzip and zip files/buffers. The following modules used to be distributed...

PYSEC-2026-1294 Unfurl's unbounded zlib decompression allows decompression bomb DoS

Summary The compressed data parser uses zlib.decompress without a maximum output size. A small, highly compressed payload can expand to a very large output, causing memory exhaustion and denial of service. Details - unfurl/parsers/parsecompressed.py calls zlib.decompressdecoded with no size limit...

Security Bulletin: IBM MQ for HPE NonStop is vulnerable to an issue in zlib (CVE-2026-27171)

Summary IBM MQ for HPE NonStop is vulnerable to an issue in versions of zlib, due to excessive CPU consumption when inputs are not properly validated. Vulnerability Details CVEID:CVE-2026-27171 DESCRIPTION: zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combinegen64 because...

[SECURITY] Fedora 44 Update: perl-IO-Compress-2.221-1.fc44

This distribution provides a Perl interface to allow reading and writing of compressed data created with the zlib and bzip2 libraries. IO-Compress supports reading and writing of bzip2, RFC 1950, RFC 1951, RFC 1952 i.e. gzip and zip files/buffers. The following modules used to be distributed...

Astra Linux – Vulnerability in zlib

Zlib before version 1.3.2 allowed CPU consumption through crc32combine64 and crc32combinegen64, because x2nmodp could perform right shifts within a loop without a termination condition...