RHSA-2026:30856

Vulnerability from csaf_redhat - Published: 2026-06-29 04:47 - Updated: 2026-06-29 08:04
Summary
Red Hat Security Advisory: perl-Archive-Tar security update
Severity
Important
Notes
Topic: An update for perl-Archive-Tar is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Archive::Tar provides an object oriented mechanism for handling tar files. It provides class methods for quick and easy files handling while also allowing for the creation of tar file objects for custom manipulation. If you have the IO::Zlib module installed, Archive::Tar will also support compressed or gzipped tar files. Security Fix(es): * perl-archive-tar: perl-archive-tar: Path traversal via crafted symlinks allows arbitrary file access (CVE-2026-42496) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2026-42496

A flaw was found in perl-Archive-Tar. Versions before 3.08 for Perl are vulnerable to a path traversal issue. An attacker can craft a malicious tar archive containing symlinks with targets outside the intended extraction directory. This vulnerability allows the attacker to read or write to arbitrary files on the system, leading to potential information disclosure or data corruption.

8.2 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Product Identifier Version Remediation
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:perl-Archive-Tar-0:2.38-6.el9_8.1.noarch —
Vendor Fix fix
Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:perl-Archive-Tar-0:2.38-6.el9_8.1.src —
Vendor Fix fix
Workaround
Threats
Impact Important
References
To clipboard 

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        "text": "Archive::Tar provides an object oriented mechanism for handling tar files.  It provides class methods for quick and easy files handling while also allowing for the creation of tar file objects for custom manipulation.  If you have the IO::Zlib module installed, Archive::Tar will also support compressed or gzipped tar files.\n\nSecurity Fix(es):\n\n* perl-archive-tar: perl-archive-tar: Path traversal via crafted symlinks allows arbitrary file access (CVE-2026-42496)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
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          "text": "A flaw was found in perl-Archive-Tar. Versions before 3.08 for Perl are vulnerable to a path traversal issue. An attacker can craft a malicious tar archive containing symlinks with targets outside the intended extraction directory. This vulnerability allows the attacker to read or write to arbitrary files on the system, leading to potential information disclosure or data corruption.",
          "title": "Vulnerability description"
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            "privilegesRequired": "LOW",
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      ],
      "title": "perl-archive-tar: perl-archive-tar: Path traversal via crafted symlinks allows arbitrary file access"
    }
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.