CVE-2026-96279: Improper Link Resolution Before File Access

A malicious OCI registry can hardlink arbitrary host files into the extraction directory when a user installs or updates a Flatpak application from an OCI remote, allowing disclosure of arbitrary host file contents. For system-wide installs running as root, this includes sensitive files such as...

OESA-2026-4081 tar security update

GNU Tar provides the ability to create tar archives, as well as various other kinds of manipulation. For example, you can use Tar on previously created archives to extract files, to store additional files, or to update or list files which were already stored. Security Fixes: A flaw was found in G...

tar: tar: --one-top-level hardlink targets not confined to top-level directory enabling arbitrary file overwrite

A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designated top-level directory and may resolve relative to the extraction working directory. A crafted archive can create hardlinks that escape the intended boundary...

CVE-2026-86805 AT_SECURE programs may load attacker-controlled code via $ORIGIN

A time-of-check to time-of-use TOCTOU race condition in the dynamic loader ld.so of the GNU C Library glibc versions 2.14 through 2.44 allows a local attacker to escalate privileges. When expanding $ORIGIN in DTRPATH for setuid/setgid ATSECURE programs, glibc validates the lexically normalized...

CVE-2026-47699

A flaw was found in Confidential Containers Guest Components. A workload owner can exploit a vulnerability in the image-rs library's hardlink fallback mechanism by providing a crafted OCI Open Container Initiative image layer. This allows for an arbitrary file write outside the intended directory...

OESA-2026-3912 tar security update

GNU Tar provides the ability to create tar archives, as well as various other kinds of manipulation. For example, you can use Tar on previously created archives to extract files, to store additional files, or to update or list files which were already stored. Security Fixes: A flaw was found in G...

OESA-2026-3911 tar security update

GNU Tar provides the ability to create tar archives, as well as various other kinds of manipulation. For example, you can use Tar on previously created archives to extract files, to store additional files, or to update or list files which were already stored. Security Fixes: A flaw was found in G...

BIT-PYTHON-2026-87910 tarfile hardlink fallback ignores custom extraction filter rejection via None

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was...

BIT-PYTHON-MIN-2026-87910 tarfile hardlink fallback ignores custom extraction filter rejection via None

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was...

BIT-LIBPYTHON-2026-87910 tarfile hardlink fallback ignores custom extraction filter rejection via None

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was...

Updated tar packages fix security vulnerabilities

GNU Tar through 1.35 allows file overwrite via directory traversal in crafted TAR archives, with a certain two-step process. CVE-2025-45582 Tar: toctou in incremental dumpdir 'x' rename handling allows restore path escape. CVE-2026-18477 Tar: --one-top-level hardlink targets not confined to...

MGASA-2026-0401 Updated tar packages fix security vulnerabilities

GNU Tar through 1.35 allows file overwrite via directory traversal in crafted TAR archives, with a certain two-step process. CVE-2025-45582 Tar: toctou in incremental dumpdir 'x' rename handling allows restore path escape. CVE-2026-18477 Tar: --one-top-level hardlink targets not confined to...

Astra Linux – Vulnerability in busybox

A flaw was discovered in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by creating a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevated privileges, this flaw can lead...

Astra Linux – Vulnerability in node-tar

node-tar is a fully featured Tar library for Node.js. When using default options in versions 7.5.7 and below, an attacker-controlled archive can create a hardlink within the extraction directory that points to a file outside of the extraction root. This allows arbitrary file reading and writing b...

CVE-2026-87910 tarfile hardlink fallback ignores custom extraction filter rejection via None

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was...

CVE-2026-87910 tarfile hardlink fallback ignores custom extraction filter rejection via None

When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was...

CVE-2026-87910

CVE-2026-87910 affects Python's tarfile module. When extracting a hardlink on a system without link support, tarfile falls back to extracting the referenced member from the archive. During this fallback, the extraction filter function is invoked twice—once for the extracted member and once with t...

RLSA-2026:61586 Moderate: tar security, bug fix, and enhancement update

The GNU tar program can save multiple files in an archive and restore files from an archive. Security Fixes: tar: tar: Hidden file injection via crafted archives CVE-2026-5704 tar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path escape CVE-2026-18477 tar: tar:...

tar security, bug fix, and enhancement update

An update is available for tar. This update affects Rocky Linux 10. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The GNU tar program can save multiple files in an archive and restore files from...

RockyLinux 10 : tar (RLSA-2026:61586)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:61586 advisory. tar: tar: Hidden file injection via crafted archives CVE-2026-5704 tar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path esca...