NATS Server panic via malicious compression on leafnode port

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CVE-2026-34545

A flaw was found in OpenEXR, an image storage format for the motion picture industry. An attacker can exploit this vulnerability by providing a specially crafted .exr file with HTJ2K compression and a specific channel width. This allows controlled data to be written beyond the output heap buffer,...

Linux Distros Unpatched Vulnerability : CVE-2026-34545

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version...

Rack has quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header

Summary Rack::Utils.selectbestencoding processes Accept-Encoding values with quadratic time complexity when the header contains many wildcard entries. Because this method is used by Rack::Deflater to choose a response encoding, an unauthenticated attacker can send a single request with a crafted...

CVE-2026-34545

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write...

EUVD-2026-18062

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write...

Security Bulletin: IBM Cloud Pak for Data System (CPDS 1.0) is affected by multiple vulnerabilities due to urllib3

Summary The urllib3 library is used by IBM Cloud Pak for Data System 1.0 to provide HTTP client functionality for Python applications. Multiple vulnerabilities affect urllib3. CVE-2025-66418 involves allocation of resources without limits or throttling. CVE-2025-66471 and CVE-2026-21441 both rela...

CVE-2026-34545: Heap-based Buffer Overflow

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write...

K000160551: OpenSSL vulnerability CVE-2025-66199

Security Advisory Description Issue summary: A TLS 1.3 connection using certificate compression can be forced to allocate a large buffer before decompression without checking against the configured certificate size limit. Impact summary: An attacker can cause per-connection memory allocations of ...

CVE-2024-14031 Sereal::Encoder versions from 4.000 through 4.009_002 for Perl is vulnerable to a buffer overwrite flaw in the Zstandard library

Sereal::Encoder versions from 4.000 through 4.009002 for Perl is vulnerable to a buffer overwrite flaw in the Zstandard library. Sereal::Encoder embeds a version of the Zstandard zstd library that is vulnerable to CVE-2019-11922. This is a race condition in the one-pass compression functions of...

CVE-2024-14031

Sereal::Encoder versions from 4.000 through 4.009002 for Perl embeds a vulnerable version of the Zstandard library. Sereal::Encoder embeds a version of the Zstandard zstd library that is vulnerable to CVE-2019-11922. This is a race condition in the one-pass compression functions of Zstandard prio...

CVE-2024-14030

Sereal::Decoder versions from 4.000 through 4.009002 for Perl is vulnerable to a buffer overwrite flaw in the Zstandard library. Sereal::Decoder embeds a version of the Zstandard zstd library that is vulnerable to CVE-2019-11922. This is a race condition in the one-pass compression functions of...

CVE-2024-14030

Sereal::Decoder versions from 4.000 through 4.009002 for Perl embeds a vulnerable version of the Zstandard library. Sereal::Decoder embeds a version of the Zstandard zstd library that is vulnerable to CVE-2019-11922. This is a race condition in the one-pass compression functions of Zstandard prio...

PT-2026-29223

Name of the Vulnerable Software and Affected Versions Sereal::Encoder versions 4.000 through 4.009 002 Description Sereal::Encoder for Perl includes a vulnerable version of the Zstandard zstd library. A race condition exists in the one-pass compression functions of Zstandard versions prior to...

[SECURITY] Fedora 42 Update: rust-astral-tokio-tar-0.6.0-1.fc42

A Rust implementation of an async TAR file reader and writer. This library does not currently handle compression, but it is abstract over all I/O readers and writers. Additionally, great lengths are taken to ensure that the entire contents are never required to be entirely resident in memory all ...

[SECURITY] Fedora 42 Update: rust-tar-0.4.45-1.fc42

A Rust implementation of a TAR file reader and writer. This library does not currently handle compression, but it is abstract over all I/O readers and writers. Additionally, great lengths are taken to ensure that the entire contents are never required to be entirely resident in memory all at once...

[SECURITY] Fedora 43 Update: bcftools-1.23.1-1.fc43

BCFtools is a set of utilities that manipulate genomic variant calls in the Variant Call Format VCF and its binary counterpart BCF. All commands work transparently with both VCFs and BCFs, both uncompressed and BGZF-compressed. This BCFtools includes the polysomy subcommand, which is implemented...

[SECURITY] Fedora 43 Update: rust-tar-0.4.45-1.fc43

A Rust implementation of a TAR file reader and writer. This library does not currently handle compression, but it is abstract over all I/O readers and writers. Additionally, great lengths are taken to ensure that the entire contents are never required to be entirely resident in memory all at once...

[SECURITY] Fedora 43 Update: rust-astral-tokio-tar-0.6.0-1.fc43

A Rust implementation of an async TAR file reader and writer. This library does not currently handle compression, but it is abstract over all I/O readers and writers. Additionally, great lengths are taken to ensure that the entire contents are never required to be entirely resident in memory all ...

[SECURITY] Fedora 43 Update: python-fastar-0.9.0-2.fc43

The fastar library wraps the Rust tar, flate2, and zstd crates, providing a high-performance way to work with compressed and uncompressed tar archives in Python...