Read the docs
TI-2026-67872 Aliases CVE-2026-105712GHSA-9w76-549g-prc8

Symlink following in GnuPG gpgtar allows overwriting files

Priority LOW 16CWE-61Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · Low · Low
Fix status
Partial Red Hat: 1 fixed, 8 without a fix

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

Summary

GnuPG before 2.5.19 contains a symlink-following flaw in gpgtar (CWE-61). When an untrusted archive is extracted with --directory into an existing directory that already contains a symlink, gpgtar can create or overwrite files outside the extraction directory, limited by the extracting user's filesystem permissions. A local attacker can exploit this when a user extracts a crafted archive into such a directory, and extraction into a fresh empty directory is not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

gpgtar in GnuPG before 2.5.19 can allow file overwrite via crafted data in an archive. When extracting an untrusted archive with --directory (aka -C) into an existing directory containing a pre-existing symlink, gpgtar can follow that symlink and create or overwrite a file outside the selected extraction directory. The write is limited by the extraction user's filesystem permissions. An archive extracted into a fresh empty directory does not have this risk.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00128 2nd percentileScored 2026-11-07
Fix Partial GnuPG (GnuPG): 2.5.19Red Hat: 1 advisoryRed Hat: 1 fixed, 8 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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
GnuPGGnuPGbefore 2.5.192.5.19Patch availableCNA
  • GnuPG VendorGnuPG Affected before 2.5.19 Fixed in 2.5.19 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*——GnuPG
  • cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:* Versions — — ·GnuPG

Remediation

Upgrade GnuPG to version 2.5.19. Red Hat fixes Red Hat Hardened Images in RHSA-2026:77484, released 2026-10-07. Red Hat lists Red Hat Enterprise Linux 6 (no fix planned), Red Hat Enterprise Linux 7 and 8, and Red Hat OpenShift Container Platform 4 and 5 (no fix available) as affected without a fix, and lists Red Hat Enterprise Linux 9 and 10 and Red Hat OpenShift AI as affected without a fix.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA GnuPG (GnuPG) Fixed in 2.5.19

Red Hat 1 advisory

  • RHSA-2026:77484 Released 2026-10-07 · Red Hat rating Low
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images gnupg2-2.4.9-18.1.hum1@aarch64, gnupg2-2.4.9-18.1.hum1@src, gnupg2-2.4.9-18.1.hum1@x86_64 +20

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 10Affected—
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9Affected—
Red Hat OpenShift AI (RHOAI)Affected—
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 5AffectedNo fix yet: Fix deferred
Red Hat Hardened ImagesFixed RHSA-2026:77484
Not affected: 1 product
  • Red Hat OpenShift AI (RHOAI)

Timeline

  1. 2026-10-05 Threatist record created from CVE-2026-105712
  2. 2026-10-05 CISA SSVC decision points changed
  3. 2026-10-06 Alias added: GHSA-9w76-549g-prc8
  4. 2026-10-06 Affected versions changed · Red Hat
  5. 2026-10-06 CVSS score added · Red Hat
  6. 2026-10-07 Fix available: RHSA-2026:77484 · Red Hat
  7. 2026-10-07 Fix available: Red Hat Hardened Images · Red Hat
  8. 2026-11-03 Affected versions changed · Red Hat
  9. 2026-11-06 Affected versions changed · Red Hat

References

Other 3

  • TI-2022-03243 Integer overflow in libksba CVSS 3.1CRITICAL 9.8
  • TI-2025-42429 Out-of-bounds write in GnuPG CVSS 3.1HIGH 7.8
  • TI-2025-42428 Improper signature verification in GnuPG CVSS 3.1MEDIUM 5.9
  • TI-2026-81454 GnuPG for Windows inherits insecure permissions on ProgramData CVSS 3.1CRITICAL 9.8
  • TI-2008-01464 GnuPG (gpg) 1.4.8 and 2.0.8 allows remote attackers to cause a denial of service (crash)… CVSS 2.0HIGH 9.3
  • TI-2026-20067 Stack-based buffer overflow in GnuPG CVSS 3.1CRITICAL 9.8
See all 57 →

Sources

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