OESA-2026-3912

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3912
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-3912.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-3912
Upstream
  • CVE-2026-18508
Published
2026-09-20T13:23:09Z
Modified
2026-09-20T13:30:24Z
Severity
  • 4.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N CVSS Calculator
Summary
tar security update
Details

GNU Tar provides the ability to create tar archives, as well as various other kinds of manipulation. For example, you can use Tar on previously created archives to extract files, to store additional files, or to update or list files which were already stored.

Security Fix(es):

A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designated top-level directory and may resolve relative to the extraction working directory. A crafted archive can create hardlinks that escape the intended boundary and, when combined with a preexisting symbolic link under the working directory, may allow writing outside that boundary during a single extraction.(CVE-2026-18508)

Database specific 
{
    "severity":  "Medium"
}
References

Affected packages

openEuler:24.03-LTS-SP3 / tar

Package

Name
tar
Purl
pkg:rpm/openEuler/tar&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.35-8.oe2403sp3

Ecosystem specific 

{
    "aarch64":  [
        "tar-1.35-8.oe2403sp3.aarch64.rpm",
        "tar-debuginfo-1.35-8.oe2403sp3.aarch64.rpm",
        "tar-debugsource-1.35-8.oe2403sp3.aarch64.rpm"
    ],
    "noarch":  [
        "tar-help-1.35-8.oe2403sp3.noarch.rpm"
    ],
    "src":  [
        "tar-1.35-8.oe2403sp3.src.rpm"
    ],
    "x86_64":  [
        "tar-1.35-8.oe2403sp3.x86_64.rpm",
        "tar-debuginfo-1.35-8.oe2403sp3.x86_64.rpm",
        "tar-debugsource-1.35-8.oe2403sp3.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3912.json"