SUSE CVE-2026-90954

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

UBUNTU-CVE-2026-90954

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

Linux Distros Unpatched Vulnerability : CVE-2026-90954

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and...

DEBIAN-CVE-2026-90954

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

CVE-2026-90954

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

AZL-109776 CVE-2026-90954 affecting package busybox 1.36.1-27

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

CVE-2026-90954

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

CVE-2026-90954

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

CVE-2026-90954 Busybox: busybox: dpkg-deb extraction-root escape via per-ar-member deferred symlink flush

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

EUVD-2026-100951

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

CVE-2026-90954 Busybox: busybox: dpkg-deb extraction-root escape via per-ar-member deferred symlink flush

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

CVE-2026-90954

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

CVE-2026-90954

A flaw exists in BusyBox 's dpkg-deb archive extraction where the ar archive handler flushes deferred symlinks after each member, unlike other handlers. An attacker can craft a .deb archive with two data.tar members: the first creates a symlink to an absolute path (e.g., /), which is flushed imme...

CVE-2026-90954

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

PT-2026-113747

Name of the Vulnerable Software and Affected Versions BusyBox affected versions not specified Description A flaw exists in the dpkg-deb archive extraction process. The ar archive handler flushes deferred symlinks after each archive member, whereas other handlers like tar, cpio, and unzip only flu...

CVE-2026-90954: Improper Link Resolution Before File Access

A flaw was found in BusyBox's dpkg-deb archive extraction. The ar archive handler flushes deferred symlinks after each archive member, unlike the tar, cpio, and unzip handlers which flush once after the last member. A specially crafted .deb archive with two data.tar members can exploit this...

PT-2026-43208

It was discovered that dpkg-deb a component of dpkg, the Debian package management system does not properly validate the end of the data stream when uncompressing a zstd-compressed .deb archive, which may result in denial of service infinite loop spinning the CPU...

Ubuntu 24.04 LTS / 25.10 : dpkg vulnerability (USN-8249-1)

The remote Ubuntu 24.04 LTS / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-8249-1 advisory. Yashashree Gund discovered that the dpkg dpkg-deb tool incorrectly handled certain zstd-compressed .deb archives. If a user or automated system were trick...

PT-2026-39177

Yashashree Gund discovered that the dpkg dpkg-deb tool incorrectly handled certain zstd-compressed .deb archives. If a user or automated system were tricked into manipulating a specially crafted .deb archive, a remote attacker could possibly use this issue to cause dpkg-deb to stop responding,...

CVE-2026-2219

A flaw was found in dpkg-deb, a component of the Debian package management system. This vulnerability allows a local user to trigger a Denial of Service DoS by providing a specially crafted zstd-compressed .deb archive. The flaw occurs because dpkg-deb does not properly validate the end of the da...