Vulnerability in GnuPG

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund5 Oct 2026WID-SEC-2026-3739

  GnuPG: Vulnerability allows file manipulation Translated from German

  CVE-2026-105712

[ References ]References

• github.com/gpg/gnupg/commit/7a2692fe5e580ae3bbb2a47abc4baaf1af65aa88
• lists.gnupg.org/pipermail/gnupg-announce/2026q2/000504.html
• static.dev.gnupg.org/T8159.html