CVE-2026-54501— Browsertrix: Arbitrary Command Injection due to Improper Command Sanitization in Git URLs specified as Custom Behaviors
Quick assessment
Affected
webrecorder browsertrix
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.
Browsertrix 是一种高保真、基于浏览器的网络爬虫服务，用于网页存档，可以自托管，也可以通过 Webrecorder 的托管实例使用。在 1.15.0 到 1.22.8 版本中，Browsertrix 对作为“自定义行为”（Custom Behaviors）指定的 Git URL 未进行充分净化，导致通过 /api/orgs/*/crawlconfigs/validate/custom-behavior 接口存在命令注入漏洞。拥有特定实例上爬虫或管理员权限的用户可以提供精心构造的 Git URL，从而在后端
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-54501
Vulnerability Information
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Vulnerability Title
Browsertrix: Arbitrary Command Injection due to Improper Command Sanitization in Git URLs specified as Custom Behaviors
Source: CVE Program / CVE List V5
Vulnerability Description
Browsertrix is a high-fidelity, browser-based crawling service for web archiving that can be self-hosted or used through Webrecorder's hosted instance. From 1.15.0 until 1.22.8, Browsertrix improperly sanitizes Git URLs specified as Custom Behaviors, allowing command injection through /api/orgs/*/crawlconfigs/validate/custom-behavior. A user with crawler or administrator permission on the specific instance can supply a crafted Git URL that executes arbitrary operating-system commands in the backend pod. Open registration or hosted free-trial access can make the required role broadly obtainable. Successful exploitation can expose, modify, or delete application database records, archived items, browser profiles, storage data, proxy credentials, and other configured service data. This issue is fixed in version 1.22.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| webrecorder | browsertrix | >= 1.15.0, < 1.22.8 | - |
|
II. Public POCs for CVE-2026-54501
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-54501 (1)
Vendor Advisories for CVE-2026-54501 (1)
Vendor Pages for CVE-2026-54501 (1)
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🔗 Release Browsertrix v1.22.8 · webrecorder/browsertrix · GitHub x_refsource_MISC
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V. Comments for CVE-2026-54501
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