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CVE-2026-105712

Quick assessment

Affected
GnuPG GnuPG
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 GnuPG 2.5.19 版本之前的 gpgtar 工具存在一个安全漏洞，允许通过构造的归档数据实现文件覆盖。当使用 --directory（即 -C）选项从不受信任的归档文件中提取内容到一个已存在预置符号链接的目录时，gpgtar 可能会跟随该符号链接，并在所选的提取目录外部创建或覆盖文件。该写入操作受提取用户的文件系统权限限制。若将归档文件提取到一个全新的空目录中，则不存在此风险。

CVSS 3.6 · Low EPSS 0.12% · P2

Affected Version Matrix 1

VendorProduct Version RangeStatus
GnuPG GnuPG < 2.5.19 affected
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I. Basic Information for CVE-2026-105712

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GnuPG GnuPG 0 ~ 2.5.19 -

II. Public POCs for CVE-2026-105712

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III. Intelligence Information for CVE-2026-105712

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Patches & Fixes for CVE-2026-105712 (1)

Vendor Advisories for CVE-2026-105712 (1)

Mailing List Discussions for CVE-2026-105712 (1)

IV. Related Vulnerabilities

Same product: GnuPG
Same vendor: GnuPG
Same weakness: CWE-61

V. Comments for CVE-2026-105712

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