CVE-2026-49248 OneDev: RCE through absolute-path symlink following allows low-privileged users to overwrite arbitrary server via TarUtils.untar

OneDev is a Git server with CI/CD, kanban, and packages. In versions 15.0.6 and below, TarUtils.untar creates symbolic links verbatim from TAR entry getLinkName without validating whether the target is an absolute path. A subsequent file entry in the same archive traverses the symlink, writing to...

CVE-2026-49248

OneDev is a Git server with CI/CD, kanban, and packages. In versions 15.0.6 and below, TarUtils.untar creates symbolic links verbatim from TAR entry getLinkName without validating whether the target is an absolute path. A subsequent file entry in the same archive traverses the symlink, writing to...

BBOT: Path traversal (Zip-Slip) in unarchive module - incomplete fix for CVE-2025-10284

The unarchive internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on the behavior of external tools e.g. GNU tar which varies by platform. While CVE-2025-10284 addressed git-specific RCE vectors, the underlying archive extractio...

GHSA-3VGW-585J-4M45 BBOT: Path traversal (Zip-Slip) in unarchive module - incomplete fix for CVE-2025-10284

The unarchive internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on the behavior of external tools e.g. GNU tar which varies by platform. While CVE-2025-10284 addressed git-specific RCE vectors, the underlying archive extractio...

dotnet: .NET: Local file tampering via link following vulnerability

A flaw was found in .NET's System.Formats.Tar library. When extracting a specially crafted TAR archive containing symbolic links, the TarFile.ExtractToDirectory method may incorrectly follow those links and write files outside the intended extraction directory. An attacker could exploit this issu...

Siemens RUGGEDCOM RST2428P External Control of File Name or Path (CVE-2026-26158)

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

CVE-2026-12565

The unarchive internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on the behavior of external tools e.g. GNU tar which varies by platform. While CVE-2025-10284 addressed git-specific RCE vectors, the underlying archive extractio...

CVE-2026-12565

The CVE-2026-12565 entry concerns the unarchive module’s archive extraction commands, which perform no path validation and rely on external tools (notably GNU tar) whose behavior varies by platform. On systems using GNU tar < 1.34 (e.g., Ubuntu 20.04, Debian Buster, CentOS 7, and many Docker b...

CVE-2026-12565 Path Traversal (Zip-Slip) in unarchive module

The unarchive internal module's archive extraction commands perform no code-level validation on extracted file paths, relying entirely on the behavior of external tools e.g. GNU tar which varies by platform. While CVE-2025-10284 addressed git-specific RCE vectors, the underlying archive extractio...

Stack-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Stack-based Buffer Overflow in the rawtoheader function when processing TAR archive headers that contain non-null-terminated name or linkname fields. An attacker can cause a stack buffer overflow and potentially execute arbitrary code o...

Integer Overflow or Wraparound

Overview Affected versions of this package are vulnerable to Integer Overflow or Wraparound via the mtarnext function. An attacker can cause the process to enter an infinite loop and consume excessive CPU resources by providing a specially crafted tar archive that manipulates the header size fiel...

dotnet: .NET: Local file tampering via link following vulnerability

A flaw was found in .NET's System.Formats.Tar library. When extracting a specially crafted TAR archive containing symbolic links, the TarFile.ExtractToDirectory method may incorrectly follow those links and write files outside the intended extraction directory. An attacker could exploit this issu...

CVE-2026-55738

A stack-based buffer overflow exists in the rawtoheader function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of the source...

CVE-2026-54417

An integer overflow in the mtarnext function in src/microtar.c in rxi microtar 0.1.0 allows a remote attacker to cause a denial of service uncontrolled CPU consumption / infinite loop via a crafted tar archive. mtarnext computes the offset to the next record as rounduph.size, 512 +...

CVE-2026-55738

The CVE covers a stack-based buffer overflow in rxi/microtar 0.1.0 due to using strcpy() on the 100-byte TAR header name and linkname fields in raw_to_header(). The lack of guaranteed null termination allows reading past the 512-byte header and writing past the destination header buffer, causing ...

CVE-2026-55738 Stack Buffer Overflow in rxi/microtar raw_to_header() via non-null-terminated TAR name field

A stack-based buffer overflow exists in the rawtoheader function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of the source...

CVE-2026-55738 Stack Buffer Overflow in rxi/microtar raw_to_header() via non-null-terminated TAR name field

A stack-based buffer overflow exists in the rawtoheader function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of the source...

CVE-2026-55738 Stack Buffer Overflow in rxi/microtar raw_to_header() via non-null-terminated TAR name field

A stack-based buffer overflow exists in the rawtoheader function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of the source...

EUVD-2026-37712

A stack-based buffer overflow exists in the rawtoheader function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of the source. The POSIX ustar format permits these fixed-width...

CVE-2026-54417 Integer Overflow in rxi/microtar mtar_next() Causes Infinite Loop DoS

An integer overflow in the mtarnext function in src/microtar.c in rxi microtar 0.1.0 allows a remote attacker to cause a denial of service uncontrolled CPU consumption / infinite loop via a crafted tar archive. mtarnext computes the offset to the next record as rounduph.size, 512 +...