CVE-2026-87897
MediumCVSS 4.6Exploitation Probability (EPSS)
Low risk9th percentile - higher than 9% of all known CVEs
Summary
An SSRF vulnerability allows access to internal Chrome DevTools Protocol APIs, which can leak the JWT authentication token of another user. A low-privileged attacker could repeatedly exploit this when starting a recording to obtain the victim's JWT token, gaining read/write access to the victim's Whiteboard.
Risk Assessment
A low-privileged attacker can hijack another user's session and modify their Whiteboard data. This poses a risk to data confidentiality and integrity and enables privilege escalation within the application.
Recommendation
Update the application to a version containing the fix that eliminates the SSRF and restrict access to internal DevTools Protocol APIs. Additionally, consider server-side URL validation and monitoring of unusual requests to internal services.
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Original NVD description (English source)
A SSRF vulnerability found that enables access to internal Chrome Devtools Protocol APIs that can leak the JWT authentication token for another user. A low privileged attacker could continually exploit this vulnerability to leak the JWT authentication token for another user when they start a recording, which then enables the attacker read/write access to the victim's Whiteboard.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS