CVE-2026-63175 - Cross-Capture Session Data Leakage in Looklyloo
CVE-2026-63175 - Cross-Capture Session Data Leakage
A new vulnerability, CVE-2026-63175, titled “Cross-Capture Session Data Leakage Due to Shared Mutable State in Looklyloo - PlaywrightCapture,” has been identified. 🚨
PlaywrightCapture stored capture-specific configuration and runtime data as mutable class-level variables rather than instance-level variables. Consequently, multiple Capture objects running within the same Python process could share state, including:
- HTTP headers
- Cookies
- Browser storage
- HTTP credentials
- Proxy configuration
- User-agent settings
- Geolocation information
- Captured request data
In a multi-user or concurrent deployment, information supplied during one capture could therefore persist and be reused by a subsequent or parallel capture. This could result in the disclosure of authentication cookies, credentials, browser storage, or captured request data belonging to another user. It could also cause requests to be performed with another capture’s authentication context, headers, or proxy configuration, potentially enabling unauthorized access to remote resources or interference with other capture operations. 🔒
The vulnerability is resolved by initializing all capture-specific settings and request data as instance variables in the Capture constructor, ensuring that state is isolated between capture operations.
The CVE-2026-63175 entry was received on July 15, 2026. The affected product is Lookyloo PlaywrightCapture, with versions less than or equal to v1.40.2 identified as vulnerable. This vulnerability is assigned CWE-613. Additionally, CVSS V4.0 metrics have been added: AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.
A reference to the resolution commit is available at GitHub Commit.
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