CVE-2026-42563
Dulwich Vulnerable to Command Injection via Merge Driver Path
EPSS 0.56%
描述
Dulwich is a pure-Python implementation of the Git file formats and protocols. Starting in version 0.24.0 and prior to version 1.2.5, Dulwich's `ProcessMergeDriver` substitutes the file path (from the git tree, controllable by an attacker via a malicious branch) into the merge driver command via the `%P` placeholder and executes it with `subprocess.run(..., shell=True)`. An attacker who can cause a victim to merge an untrusted branch can achieve arbitrary command execution by crafting malicious file paths. Version 1.2.5 fixes the issue.
如何修補 CVE-2026-42563
要修補 CVE-2026-42563,請將受影響套件升級到下列已修補版本。
- —升級至 1.2.5 或更新版本
- —升級至 1.2.5 或更新版本
CVE-2026-42563 正在被利用嗎?
低 — EPSS 為 0.6%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 0.24.0, < 1.2.5
- >= 0.24.0, < 1.2.5
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |