CVE-2026-18508 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-2026-18508

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...

PT-2026-67267

A flaw was found in GIMP. A remote attacker could exploit this by tricking a user into opening a specially crafted PAA Paint Shop Pro Array image file. This vulnerability, a heap-based out-of-bounds write in the decode lzss function of the PAA file format plugin, allows data to be written beyond...

CVE-2026-18477: Time-of-check Time-of-use (TOCTOU) Race Condition

A TOCTOU Time-of-Check Time-of-Use vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During...

Linux Distros Unpatched Vulnerability : CVE-2026-18477

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A TOCTOU Time-of-Check Time-of-Use vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory...

CVE-2026-18508: Improper Link Resolution Before File Access

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...

Linux Distros Unpatched Vulnerability : CVE-2026-18508

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 GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designated top-level directory...

tar: tar: TOCTOU in incremental dumpdir 'X' rename handling allows restore path escape

A TOCTOU Time-of-Check Time-of-Use vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During...

OESA-2026-3223 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...

CVE-2026-57053

A flaw was found in GNU libidn. This vulnerability allows an attacker to cause out-of-bounds reads of uninitialized memory within the ToUnicode APIs due to mishandling in the idnatounicodeinternal function. This could lead to information disclosure or a denial of service. Mitigation No...

JLSEC-2026-1084 CMS (Cryptographic Message Syntax) parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS...

CMS Cryptographic Message Syntax parsing in gpgsm in GnuPG through 2.5.20 mishandles the CMS format for AES-GCM because aes-ICVlen is supposed to be 12 bytes but 4 bytes is accepted. NOTE: this is related to CVE-2026-34182...

CVE-2026-56390

A flaw was found in GNU Bison. When processing attacker-supplied grammar, the software improperly handles grammar-defined output paths. This allows an attacker to use directives such as %output and %header to specify arbitrary file paths. Consequently, generated files can be directed to any...

[SECURITY] [DLA 4707-1] gsasl security update

Debian LTS Advisory DLA-4707-1 [email protected] https://www.debian.org/lts/security/ Carlos Henrique Lima Melara July 30, 2026 https://wiki.debian.org/LTS Package : gsasl Version : 1.10.0-4+deb11u3 2.2.0-1+deb12u2 CVE ID : CVE-2026-56968 It was discovered that missing input sanitising ...

SUSE CVE-2026-56389

GNU Bison allows for an execution of an arbitrary program during HTML report generation due to improper handling of grammar-defined configuration variables. A grammar file can override the executable used for the XML-to-HTML transformation step via %define tool.xsltproc, which is accepted without...

SUSE CVE-2026-56390

GNU Bison improperly handles grammar-defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller-supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

K000162688: GlibC vulnerability CVE-2026-4046

Security Advisory Description The iconv function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application. This vulnerability can be trivially mitigate...

CLEANSTART-2026-KS26224 Security fixes in gnupg 2.2.35-r4

Package gnupg version 2.2.35-r4 fixes 1 vulnerabilities: CVE-2022-34903...

AZL-94136 CVE-2026-56390 affecting package bison for versions less than 3.8.2-2

GNU Bison improperly handles grammar‑defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller‑supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

CVE-2026-56390

GNU Bison improperly handles grammar‑defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller‑supplied output options. When processing attacker-supplied grammar, this behavior allows directing...

AZL-94133 CVE-2026-56389 affecting package bison for versions less than 3.8.2-2

GNU Bison allows for an execution of an arbitrary program during HTML report generation due to improper handling of grammar-defined configuration variables. A grammar file can override the executable used for the XML‑to‑HTML transformation step via %define tool.xsltproc, which is accepted without...