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TI-2026-30779 Aliases CVE-2026-42496GHSA-8p37-q9qq-hgx8

Link following in BINGOS Archive::Tar

Priority MEDIUM 46CWE-59Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Partial Red Hat: 4 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

Archive::Tar versions before 3.08 for Perl extract symlinks with attacker controlled targets outside the extraction directory. _make_special_file() passes the tar header's linkname to symlink() without validating it against absolute paths or .. segments. The secure-extract mode check that guards regular file extraction does not cover the symlink target. A subsequent open through the extracted name reads or writes the attacker chosen path.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00502 43rd percentileScored 2026-11-07
Fix Partial Archive::Tar (BINGOS): 3.08Red Hat: 4 advisoriesRed Hat: 4 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
BINGOSArchive::Tarbefore 3.083.08Patch availableCNA
  • Archive::Tar VendorBINGOS Affected before 3.08 Fixed in 3.08 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:archive\:\:tar_project:archive\:\:tar:*:*:*:*:*:perl:*:*tar_project archive\VulnerableBINGOS
  • cpe:2.3:a:archive\:\:tar_project:archive\:\:tar:*:*:*:*:*:perl:*:* Versions tar_project archive\ Vulnerable ·BINGOS

Remediation

  • Fix · CNA Archive::Tar (BINGOS) Fixed in 3.08

Red Hat 4 advisories

  • RHSA-2026:30857 Released 2026-06-29 · Red Hat rating Important
    perl-Archive-Tar security update
    • Red Hat Enterprise Linux AppStream (v. 10) perl-Archive-Tar-3.02-512.el10_2.1
  • RHSA-2026:30851 Released 2026-06-29 · Red Hat rating Important
    perl:5.32 security update
    • Red Hat Enterprise Linux AppStream (v. 8) perl-4:5.32.1-474.module+el8.10.0+24099+8aa2f756.aarch64::perl:5.32, perl-4:5.32.1-474.module+el8.10.0+24099+8aa2f756.ppc64le::perl:5.32, perl-4:5.32.1-474.module+el8.10.0+24099+8aa2f756.s390x::perl:5.32 +47
  • RHSA-2026:30856 Released 2026-06-29 · Red Hat rating Important
    perl-Archive-Tar security update
    • Red Hat Enterprise Linux AppStream (v. 9) perl-Archive-Tar-2.38-6.el9_8.1
Show 1 more Red Hat advisories
  • RHSA-2026:30852 Released 2026-06-29 · Red Hat rating Important
    perl-Archive-Tar security update
    • Red Hat Enterprise Linux BaseOS (v. 8) perl-Archive-Tar-2.30-2.el8_10

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    BINGOS Archive::Tar 3.08

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-30780 Link following in BINGOS Archive::TarPriority LOW 39
    Show all 2 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:30857
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:30851
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:30856
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2026:30852

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42496
  2. 2026-10-03 Alias added: GHSA-8p37-q9qq-hgx8

References

Patch 1

Advisory 1

Other 1

  • TI-2018-08610 In Perl through 5.26.2, the Archive::Tar module allows remote attackers to bypass a… CVSS 3.0HIGH 7.5
  • TI-2026-30780 Link following in BINGOS Archive::Tar CVSS 3.1HIGH 7.5
  • TI-2026-08380 Archive::Tar versions before 3.10 for Perl allow memory exhaustion via attacker… CVSS 3.1HIGH 7.5
  • TI-2007-04673 Directory traversal vulnerability in the Archive::Tar Perl module 1.36 and earlier allows… CVSS 2.0MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences