CVE-2026-19429 Jenkins - FilePath.untarFrom() Symlink Target Validation Bypass and Blank-Name Check Bypass (Arbitrary File Read)

Jenkins FilePath.untarFrom does not validate symlink targets in extracted TAR archives, even in versions patched for CVE-2026-33001 and CVE-2026-70427. An authenticated attacker with job configuration privileges can include a malicious archive in a build step that creates workspace symlinks...

CVE-2026-19429

CVE-2026-19429 relates to Jenkins FilePath.untarFrom() where TAR extraction does not validate tar entry symlink targets, allowing an authenticated user with Item/Configure privileges to create workspace symlinks that point to arbitrary files on the Jenkins controller. This can enable reading sens...

EUVD-2026-55615

Jenkins FilePath.untarFrom in all versions, including those with the CVE-2026-33001 patch applied, validates symlink destinations but not targets. The CVE-2026-33001 fix enforces that the symlink file is created within the workspace boundary, but the symlink target — the path returned by...

CVE-2026-19429

Jenkins FilePath.untarFrom does not validate symlink targets when extracting TAR archives, allowing an attacker with Item/Configure permission to create symlinks from a workspace to arbitrary files on the Jenkins controller. This issue remains exploitable in versions patched for CVE-2026-33001 an...

CVE-2026-19429

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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-2026-66484 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...

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...

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...

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...

PT-2026-69480

Name of the Vulnerable Software and Affected Versions Jenkins Project Jenkins versions prior to LTS 2.555.3 Description An incomplete patch allows an authenticated remote attacker with Item/Configure permission to read arbitrary files on the Jenkins controller filesystem. The issue exists because...

CVE-2026-70427

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not safely handle symbolic links with effectively empty names during the extraction of .tar and .tar.gz archives, allowing attackers able to control agent processes to provide crafted archives to the controller to write files to arbitrary...

CVE-2026-70427

Jenkins 2.575 and earlier, LTS 2.568.1 and earlier does not safely handle symbolic links with effectively empty names during the extraction of .tar and .tar.gz archives, allowing attackers able to control agent processes to provide crafted archives to the controller to write files to arbitrary...

CVE-2026-70427

CVE-2026-70427 affects Jenkins 2.575 and earlier, and LTS 2.568.1 and earlier. The root cause is unsafe handling of symbolic links with effectively empty names during extraction of .tar and .tar.gz archives, allowing an attacker who can supply crafted archives to write files to arbitrary location...

CVE-2026-71283 Fledge IoT Gateway Backup Restore Tar Path Traversal

Fledge's backup-restore upload handler, uploadbackup python/fledge/services/core/api/backuprestore.py, calls tarfile.extractalltemppath on an admin-uploaded tar archive with no filter argument and no per-member path validation. Requires the admin role @haspermission"admin"...

CVE-2026-71283

Fledge's backup-restore upload handler, uploadbackup python/fledge/services/core/api/backuprestore.py, calls tarfile.extractalltemppath on an admin-uploaded tar archive with no filter argument and no per-member path validation. Requires the admin role @haspermission"admin"...

CVE-2026-71283 Fledge IoT Gateway Backup Restore Tar Path Traversal

Fledge's backup-restore upload handler, uploadbackup python/fledge/services/core/api/backuprestore.py, calls tarfile.extractalltemppath on an admin-uploaded tar archive with no filter argument and no per-member path validation. Requires the admin role @haspermission"admin"...

CVE-2026-71283 Fledge IoT Gateway Backup Restore Tar Path Traversal

Fledge's backup-restore upload handler, uploadbackup python/fledge/services/core/api/backuprestore.py, calls tarfile.extractalltemppath on an admin-uploaded tar archive with no filter argument and no per-member path validation. Requires the admin role @haspermission"admin"...

PT-2026-68262

Name of the Vulnerable Software and Affected Versions Jenkins versions prior to 2.576 Jenkins LTS versions prior to 2.568.2 Description Jenkins fails to safely handle symbolic links with effectively empty names when extracting .tar and .tar.gz archives. This allows attackers who control agent...