Linux Distros Unpatched Vulnerability : CVE-2026-72854

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - msgpackunpackerexpandbuffer in src/unpack.c, reached through the public msgpackunpackerreservebuffer API, computes its new buffer size using an unchecked sizet...

UBUNTU-CVE-2026-72854

msgpackunpackerexpandbuffer in src/unpack.c, reached through the pu...

CVE-2026-72854

msgpackunpackerexpandbuffer in src/unpack.c, reached through the public msgpackunpackerreservebuffer API, computes its new buffer size using an unchecked sizet addition of the requested size and the amount already used. The doubling loop guards its own multiplication against overflow, but the...

CVE-2026-72854 msgpack-c Integer Overflow in msgpack_unpacker_expand_buffer Causes a False-Success Undersized Reservation

msgpackunpackerexpandbuffer in src/unpack.c, reached through the public msgpackunpackerreservebuffer API, computes its new buffer size using an unchecked sizet addition of the requested size and the amount already used. The doubling loop guards its own multiplication against overflow, but the...

EUVD-2026-63537

msgpackunpackerexpandbuffer in src/unpack.c, reached through the public msgpackunpackerreservebuffer API, computes its new buffer size using an unchecked sizet addition of the requested size and the amount already used. The doubling loop guards its own multiplication against overflow, but the...

CVE-2026-72854

msgpack-c (C MessagePack library) is affected by an integer overflow in msgpack_unpacker_expand_buffer (src/unpack.c), reachable via the public msgpack_unpacker_reserve_buffer API. The doubling loop guards its multiplication against overflow, but the addition in the loop condition is unguarded , ...

CVE-2026-72854 msgpack-c Integer Overflow in msgpack_unpacker_expand_buffer Causes a False-Success Undersized Reservation

msgpackunpackerexpandbuffer in src/unpack.c, reached through the public msgpackunpackerreservebuffer API, computes its new buffer size using an unchecked sizet addition of the requested size and the amount already used. The doubling loop guards its own multiplication against overflow, but the...

CVE-2026-72854 msgpack-c Integer Overflow in msgpack_unpacker_expand_buffer Causes a False-Success Undersized Reservation

msgpackunpackerexpandbuffer in src/unpack.c, reached through the public msgpackunpackerreservebuffer API, computes its new buffer size using an unchecked sizet addition of the requested size and the amount already used. The doubling loop guards its own multiplication against overflow, but the...

PT-2026-79110

msgpack unpacker expand buffer in src/unpack.c, reached through the public msgpack unpacker reserve buffer API, computes its new buffer size using an unchecked size t addition of the requested size and the amount already used. The doubling loop guards its own multiplication against overflow, but...

openSUSE 16 Security Update : python-msgpack (openSUSE-SU-2026:21239-1)

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:21239-1 advisory. This update for python-msgpack fixes the following issue - CVE-2026-57585: reusing an Unpacker instance after an error has been caught can lead to an...

SUSE-SU-2026:22704-1 Security update for python-msgpack

This update for python-msgpack fixes the following issue - CVE-2026-57585: reusing an Unpacker instance after an error has been caught can lead to an out-of-bounds read bsc1269947...

PYSEC-2026-1944 Litestar allows unbounded resource consumption (DoS vulnerability)

Summary Litestar offers multiple methods to return a parsed representation of the request body, as well as extractors that rely on those parsers to map request content to structured data types. Multiple of those parsers do not have size limits when reading the request body into memory, which allo...

Use After Free

Overview Affected versions of this package are vulnerable to Use After Free in the clear function. An attacker can access or manipulate memory contents from another buffer by triggering the reuse of a memory page after it has been returned to the shared pool, leading to unintended disclosure or...

GO-2026-5757 MinIO vulnerable to Path Traversal via msgpack Body in `ReadMultiple` Storage-REST Endpoint in github.com/minio/minio

MinIO vulnerable to Path Traversal via msgpack Body in ReadMultiple Storage-REST Endpoint in github.com/minio/minio. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive...

Use After Free

Overview msgpack is an efficient binary serialization format. Affected versions of this package are vulnerable to Use After Free in the unpacker' when it is reused after an error has occurred. An attacker can cause a crash or denial of service by repeatedly triggering errors and reusing the same...

CVE-2026-42600

MinIO is a high-performance object storage system. From RELEASE.2022-07-24T01-54-52Z to before RELEASE.2026-04-14T21-32-45Z, A path traversal vulnerability in MinIO's ReadMultiple internode storage-REST endpoint allows a caller holding the cluster root JWT to read files from outside the configure...

CVE-2026-5740

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to properly validate msgpack-encoded WebSocket frames before memory allocation which allows an unauthenticated remote attacker to crash the server process and cause a full service outage for all users v...

GHSA-W9M8-P4CC-4QJ9 Mattermost doesn't properly validate msgpack-encoded WebSocket frames before memory allocation

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to properly validate msgpack-encoded WebSocket frames before memory allocation which allows an unauthenticated remote attacker to crash the server process and cause a full service outage for all users v...

CVE-2026-5740

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to properly validate msgpack-encoded WebSocket frames before memory allocation which allows an unauthenticated remote attacker to crash the server process and cause a full service outage for all users v...

Mattermost 安全漏洞

Mattermost is an open-source collaboration platform developed by the American company Mattermost. Vulnerabilities exist in versions of Mattermost 11.6.0 and earlier 11.6.x series, as well as versions prior to 11.5.3 11.5.x series, 11.4.4 and earlier 11.4.x series, and 10.11.14 and earlier 10.11.x...