cpio: GNU cpio: Path Traversal allows creating hard links outside intended directory via malicious tar archives.

A flaw was found in GNU cpio. This vulnerability, known as Path Traversal, occurs during the extraction of tar archives in copy-in mode when the --no-absolute-filenames option is used. A remote attacker could craft a malicious tar archive containing a hard-link entry with an absolute path. This...

CVE-2026-66486

A flaw was found in GNU cpio. This vulnerability occurs in the archive member listing functionality, where member names are printed directly without proper encoding or escaping. A remote attacker could craft a malicious cpio archive containing specially designed member names with embedded newline...

CVE-2026-66485

A flaw was found in GNU cpio. This vulnerability involves uncontrolled memory allocation when processing specially crafted cpio archives. A remote attacker could exploit this by providing a malicious archive, leading to a stack overflow and causing the cpio process to crash. This results in a...

CVE-2026-66484

A flaw was found in GNU cpio. This vulnerability, known as Path Traversal, occurs during the extraction of tar archives in copy-in mode when the --no-absolute-filenames option is used. A remote attacker could craft a malicious tar archive containing a hard-link entry with an absolute path. This...

CVE-2026-66485

GNU cpio is vulnerable to an uncontrolled memory allocation in the makepath function at src/makepath.c. The function uses alloca to allocate stack memory based on the length of argpath, which is derived from an archive-controlled pathname during extraction. A malicious cpio archive containing a...

DEBIAN-CVE-2026-66484

GNU cpio contains a Path Traversal vulnerability in its tar archive extraction functionality. When extracting a tar archive in copy-in mode with the --no-absolute-filenames option, the extracted file name is normalized but the tar hard-link target is passed to the linktoname function without...

CVE-2026-66484

GNU cpio contains a Path Traversal vulnerability in its tar archive extraction functionality. When extracting a tar archive in copy-in mode with the --no-absolute-filenames option, the extracted file name is normalized but the tar hard-link target is passed to the linktoname function without...

CVE-2026-66486

GNU cpio is vulnerable to improper encoding or escaping of output in its archive member listing functionality. When listing archive members via cpio -it, member names are printed directly to output without quoting or escaping. An attacker can craft a cpio archive containing member names with...

CVE-2026-66485

GNU cpio is vulnerable to an uncontrolled memory allocation in the makepath function at src/makepath.c. The function uses alloca to allocate stack memory based on the length of argpath, which is derived from an archive-controlled pathname during extraction. A malicious cpio archive containing a...

CVE-2026-66486

GNU cpio is vulnerable to improper output encoding in archive member listings. When listing members with cpio -it, member names are printed directly to output without quoting or escaping, allowing crafted member names containing newline characters or ANSI escape sequences to produce forged listin...

CVE-2026-66486

GNU cpio is vulnerable to improper encoding or escaping of output in its archive member listing functionality. When listing archive members via cpio -it, member names are printed directly to output without quoting or escaping. An attacker can craft a cpio archive containing member names with...

CVE-2026-66485

GNU cpio is affected by an uncontrolled memory allocation in make_path (src/makepath.c) that uses alloca based on the length of argpath, derived from an archive-controlled pathname during extraction. A crafted cpio archive with a long nested pathname can trigger unbounded stack allocation, causin...

CVE-2026-66485 Uncontrolled Memory Allocation in GNU cpio

GNU cpio is vulnerable to an uncontrolled memory allocation in the makepath function at src/makepath.c. The function uses alloca to allocate stack memory based on the length of argpath, which is derived from an archive-controlled pathname during extraction. A malicious cpio archive containing a...

CVE-2026-66485

GNU cpio is vulnerable to an uncontrolled memory allocation in the makepath function at src/makepath.c. The function uses alloca to allocate stack memory based on the length of argpath, which is derived from an archive-controlled pathname during extraction. A malicious cpio archive containing a...

EUVD-2026-55255

GNU cpio is vulnerable to an uncontrolled memory allocation in the makepath function at src/makepath.c. The function uses alloca to allocate stack memory based on the length of argpath, which is derived from an archive-controlled pathname during extraction. A malicious cpio archive containing a...

CVE-2026-66484

GNU cpio has a Path Traversal vulnerability in tar extraction (copy-in mode with --no-absolute-filenames). A tar archive with a hard-link entry whose linkname is an absolute path can cause a hard link to a file outside the extraction directory because the hard-link target is passed to link_to_nam...

CVE-2026-66484 Path Traversal in GNU cpio

GNU cpio contains a Path Traversal vulnerability in its tar archive extraction functionality. When extracting a tar archive in copy-in mode with the --no-absolute-filenames option, the extracted file name is normalized but the tar hard-link target is passed to the linktoname function without...

EUVD-2026-55256

GNU cpio contains a Path Traversal vulnerability in its tar archive extraction functionality. When extracting a tar archive in copy-in mode with the --no-absolute-filenames option, the extracted file name is normalized but the tar hard-link target is passed to the linktoname function without...

Linux Distros Unpatched Vulnerability : CVE-2026-66485

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - GNU cpio is vulnerable to an uncontrolled memory allocation in the makepath function at src/makepath.c. The function uses alloca to allocate stack memory based ...

Linux Distros Unpatched Vulnerability : CVE-2026-66486

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - GNU cpio is vulnerable to improper encoding or escaping of output in its archive member listing functionality. When listing archive members via cpio -it, member...