{
  "threat_severity" : "Moderate",
  "public_date" : "2026-03-20T07:11:10Z",
  "bugzilla" : {
    "description" : "tar-rs: tar-rs: Arbitrary directory permission modification via crafted tar archive",
    "id" : "2449490",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2449490"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.4",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
    "status" : "draft"
  },
  "cwe" : "CWE-59",
  "details" : [ "tar-rs is a tar archive reading/writing library for Rust. In versions 0.4.44 and below, when unpacking a tar archive, the tar crate's unpack_dir function uses fs::metadata() to check whether a path that already exists is a directory. Because fs::metadata() follows symbolic links, a crafted tarball containing a symlink entry followed by a directory entry with the same name causes the crate to treat the symlink target as a valid existing directory — and subsequently apply chmod to it. This allows an attacker to modify the permissions of arbitrary directories outside the extraction root. This issue has been fixed in version 0.4.45.", "A flaw was found in tar-rs, a Rust library for reading and writing tar archives. When unpacking a crafted tar archive, an attacker can exploit a symbolic link vulnerability. By including a symlink followed by a directory with the same name, the library incorrectly applies file permissions to the symlink's target. This allows an attacker to modify the permissions of arbitrary directories outside the intended extraction location." ],
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  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-33056\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-33056\nhttps://github.com/alexcrichton/tar-rs/commit/17b1fd84e632071cb8eef9d3709bf347bd266446\nhttps://github.com/alexcrichton/tar-rs/security/advisories/GHSA-j4xf-2g29-59ph" ],
  "name" : "CVE-2026-33056",
  "mitigation" : {
    "value" : "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
    "lang" : "en:us"
  },
  "csaw" : false
}