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CVE-2026-62965— SABnzbd: Orphan-job path traversal permits arbitrary file deletion

Quick assessment

Affected
sabnzbd sabnzbd
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.

SABnzbd 是一款开源的自动化 Usenet 下载工具。在 5.1.0Beta3 版本之前， 中的孤儿任务（orphan-job）管理功能在将用户可控的 参数与 通过 拼接之前，未对其进行路径限制。若攻击者传入绝对路径，该基目录将被丢弃。拥有有效 API 密钥的攻击者可调用 并设置 ，从而触发 函数，进而调用 中的 函数；该函数使用 执行递归删除操作。安全公告还指出， 和 同样存在路径验证问题，但实际可导致任意删除的具体攻击路径是通过 实现的。此外，API 密钥以明文形式存储在 配置文件中。攻击者可删除 SAB

CVSS 7.0 · High
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I. Basic Information for CVE-2026-62965

Vulnerability Information
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Vulnerability Title
SABnzbd: Orphan-job path traversal permits arbitrary file deletion
Source: CVE Program / CVE List V5
Vulnerability Description
SABnzbd is an open source automated Usenet download tool. Prior to 5.1.0Beta3, orphan-job management in `sabnzbd/api.py` accepts the user-controlled `value` parameter without path confinement before `os.path.join()` with `download_dir`. An absolute path discards that base directory. An attacker with a valid API key can invoke `mode=status` with `name=delete_orphan` to reach `_api_delete_orphan` and `remove_all()` in `sabnzbd/filesystem.py`, which uses `shutil.rmtree()` for recursive deletion. The advisory also identifies `_api_add_orphan` and `_api_delete_all_orphan` as affected by the path-validation issue, while its concrete arbitrary-deletion trace is through `_api_delete_orphan`. The API key is stored in plaintext in `sabnzbd.ini`. The attacker can delete files or directories writable by the SABnzbd process, including configuration, queue data, and downloads, but system files outside the regular user's ownership are not affected. This issue is fixed in version 5.1.0Beta3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
sabnzbd sabnzbd < 5.1.0Beta3 -

II. Public POCs for CVE-2026-62965

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III. Intelligence Information for CVE-2026-62965

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Other References for CVE-2026-62965 (3)

IV. Related Vulnerabilities

Same product: sabnzbd
Same vendor: sabnzbd
Same weakness: CWE-22