CVE-2018-20482

CVE-2018-20482 affects GNU tar: when using --sparse, tar can enter an infinite read loop during file shrinkage, enabling a local attacker to cause a denial of service by modifying a file being archived by another user. Affected until upstream tar versions prior to the fix; remediation is to upgra...

CVE-2021-20193

CVE-2021-20193 affects tar 1.33 and earlier. A flaw in tar’s src/list.c allows an attacker submitting a crafted input file to cause uncontrolled memory consumption, with the highest impact on availability. No specific patch/version is provided in the supplied documents; some connected advisories ...

CVE-2025-45582

CVE-2025-45582 (GNU Tar) : GNU Tar up to 1.35 allows file overwrite via a two-step directory traversal attack. An attacker can craft two archives: first to place a ../ symlink to a sensitive directory, second to target a critical file by a relative path beginning with the symlink, causing the ext...

CVE-2006-6097

Summary: CVE-2006-6097 affects GNU tar (notably v1.15.1 and v1.16) due to improper handling of GNUTYPE_NAMES symlink records during extraction, enabling a user-assisted attacker to overwrite arbitrary files. Multiple advisories report the issue as a path-traversal vulnerability in tar extraction,...

CVE-2026-18508

CVE-2026-18508 : GNU tar is vulnerable when using --one-top-level; hardlink targets are not confined to the designated top-level directory and may resolve against the extraction working directory. A crafted archive can create hardlinks that escape the intended boundary and, with a preexisting sym...

CVE-2026-18477

CVE-2026-18477 describes a TOCTOU flaw in GNU tar related to incremental dumpdir rename handling. A local attacker with write access to a directory being backed up can influence the restore process on the target system, causing files/directories to be created, renamed, or overwritten outside the ...