CVE-2026-53659 http4k: Unbounded gzip decompression in `ServerFilters.GZip` / `RequestFilters.GunZip` allowed memory-exhaustion DoS

http4k is a functional toolkit for Kotlin HTTP applications. Prior to 4.51.0.0, 5.42.0.0, and 6.49.0.0, ServerFilters.GZip, RequestFilters.GunZip, and the underlying Gzip request-body decompression functions impose no limit on decompressed size. An unauthenticated client can send a small...

OESA-2026-3757 python3 security update

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C...

OESA-2026-3756 python3 security update

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C...

OESA-2026-3755 python3 security update

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C...

Security Bulletin: IBM MQ queue manager is vulnerable to unauthenticated remote code execution (CVE-2026-10027)

Summary IBM MQ has addressed a heap out-of-bounds write vulnerability in the queue manager's message decompression handling that could allow an unauthenticated remote attacker with network access to the listener port to execute arbitrary code Vulnerability Details CVEID:CVE-2026-10027 DESCRIPTION...

Astra Linux – Vulnerability in python-urllib3

urllib3 is a user-friendly HTTP client library for Python. Starting from version 1.24 and before 2.6.0, the number of links in the decompression chain was unbounded, allowing a malicious server to insert virtually an unlimited number of compression steps. This led to high CPU usage and massive...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: LZ4: fixed the issue of partial reading beyond the bounds of the buffer during decoding. During partialDecoding, an EOF occurs if either the output buffer is full or if reading further beyond the offset is not possible. In some...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: erofs: Fix for lz4 inplace decompression Currently, EROFS can map another compressed buffer for inplace decompression, which was used to handle cases where some pages of compressed data are not actually in-place I/O. However, lik...

Astra Linux – Vulnerability in gst-plugins-good1.0

DOS: Potential heap overwrite in qtdemux using zlib decompression. Integer overflow in the qtdemux element within the qtdemuxinflate function can lead to a segfault, or it may cause a heap overwrite, depending on the libc and operating system. Depending on the libc used and the underlying operati...

Astra Linux – Vulnerability in gst-plugins-good1.0

DOS: Potential heap overwrite during MKV demuxing using Zlib decompression. Integer overflow occurs in the matroskademux element within the gstmatroskadecompressdata function, which can cause a segfault—or potentially a heap overwrite, depending on the libc and operating system. Depending on the...

Astra Linux – Vulnerability in Wireshark

The Dissection engine’s zlib decompression function crashes in Wireshark versions 4.6.0 to 4.6.4, and 4.4.0 to 4.4.14, causing denial of service...

Astra Linux – Vulnerability in gst-plugins-good1.0

DOS: Potential heap overwrite during MKV demuxing using BZIP decompression. Integer overflow in the Matroskademux element within the BZIP decompression function can cause a segfault, or it may lead to a heap overwrite, depending on the libc and operating system used. Depending on the libc used an...

Astra Linux – Vulnerability in gst-plugins-good1.0

DOS: Potential heap overwrite during MKV demuxing using LZO decompression. Integer overflow in the Matroskademux element within the LZO decompression function can cause a segfault, or potentially a heap overwrite, depending on the libc and operating system. Depending on the libc used and the...

Astra Linux – Vulnerability in Wireshark

The Dissection engine LZ77 decompression function in Wireshark versions 4.6.0 to 4.6.4, and 4.4.0 to 4.4.14 experiences denial-of-service attacks...

CVE-2026-5132

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 fail to limit size of unpacked SDP messages compressed with zlib, which allows attacker to deny service or crash server via sending many SDP messages that unpack to large size.. Mattermost Advisory ID:...

CVE-2026-5132 Unbounded zlib decompression in Calls SDP WebSocket messages

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 fail to limit size of unpacked SDP messages compressed with zlib, which allows attacker to deny service or crash server via sending many SDP messages that unpack to large size.. Mattermost Advisory ID:...

CVE-2026-5132 Unbounded zlib decompression in Calls SDP WebSocket messages

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 fail to limit size of unpacked SDP messages compressed with zlib, which allows attacker to deny service or crash server via sending many SDP messages that unpack to large size.. Mattermost Advisory ID:...

CVE-2026-5132 Unbounded zlib decompression in Calls SDP WebSocket messages

Mattermost versions 11.9.x = 11.9.0, 11.8.x = 11.8.4, 11.7.x = 11.7.7, 10.11.x = 10.11.22 fail to limit size of unpacked SDP messages compressed with zlib, which allows attacker to deny service or crash server via sending many SDP messages that unpack to large size.. Mattermost Advisory ID:...

CVE-2026-5132

Mattermost versions 11.9.x ≤ 11.9.0, 11.8.x ≤ 11.8.4, 11.7.x ≤ 11.7.7, and 10.11.x ≤ 10.11.22 fail to limit the size of unpacked SDP messages compressed with zlib in Calls WebSocket messages. An authenticated attacker (low privileges) can send many SDP messages that decompress to a large size, ca...

CVE-2026-89321

Publishing limits the compressed size of a VSIX ovsx.publishing.max-content-size, 512 MB by default but nothing limited how large an entry becomes when opened. On the first request to /vscode/unpkg/namespace/extension/version/path, WebResourceService opened the entry with ZipFile.getInputStream a...