CVE-2025-34092

Rejected reason: Neither filed by Chrome nor a valid security vulnerability.
CVSS

No CVSS.

References

No reference.

Configurations

No configuration.

History

24 Jul 2025, 07:15

Type Values Removed Values Added
Summary A cookie encryption bypass vulnerability exists in Google Chrome’s AppBound mechanism due to weak path validation logic within the elevation service. When Chrome encrypts a cookie key, it records its own executable path as validation metadata. Later, when decrypting, the elevation service compares the requesting process’s path to this stored path. However, due to path canonicalization inconsistencies, an attacker can impersonate Chrome (e.g., by naming their binary chrome.exe and placing it in a similar path) and successfully retrieve the encrypted cookie key. This allows malicious processes to retrieve cookies intended to be restricted to the Chrome process only. Confirmed in Google Chrome with AppBound Encryption enabled. Other Chromium-based browsers may be affected if they implement similar COM-based encryption mechanisms. Rejected reason: Neither filed by Chrome nor a valid security vulnerability.
References
  • {'url': 'https://www.cyberark.com/resources/threat-research-blog/c4-bomb-blowing-up-chromes-appbound-cookie-encryption', 'name': 'https://www.cyberark.com/resources/threat-research-blog/c4-bomb-blowing-up-chromes-appbound-cookie-encryption', 'tags': [], 'refsource': ''}
  • {'url': 'https://vulncheck.com/advisories/google-chrome-appbound-cookie-encryption', 'name': 'https://vulncheck.com/advisories/google-chrome-appbound-cookie-encryption', 'tags': [], 'refsource': ''}

02 Jul 2025, 20:15

Type Values Removed Values Added
New CVE

Information

Published : 2025-07-02 20:15

Updated : 2025-07-24 07:15


NVD link : CVE-2025-34092

Mitre link : CVE-2025-34092


JSON object : View

Products Affected

No product.

CWE

No CWE.