EUVD-2026-65904
GHSA-gmh7-q8jg-r3pw
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Network vector confirmed by crafted-traffic attack method; AC:H reflects required network positioning and timing; no integrity or availability impact applies.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Information leak in SignIn in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to obtain sensitive information via crafted network traffic. (Chromium security severity: Medium)
AnalysisAI
Information disclosure in Google Chrome's SignIn component (versions prior to 152.0.7977.65) allows remote, unauthenticated attackers to obtain sensitive user information by sending crafted network traffic during the sign-in flow. The CVSS vector assigns High complexity (AC:H), indicating exploitation is not straightforward and requires specific network conditions to be met. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to be capable of delivering crafted network traffic to the victim's Chrome instance during an active or initiated SignIn operation - implying either a network-adjacent position (e.g., same LAN, rogue AP) or the ability to influence traffic in transit. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 5.9 (Medium) is primarily driven by the High confidentiality impact (C:H) and network attack vector (AV:N), but the High complexity rating (AC:H) is the critical moderating factor - exploitation requires the attacker to engineer specific network conditions, likely involving traffic interception or manipulation during an active SignIn session. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker positioned to observe or manipulate a victim's network traffic - such as on a shared network segment, a rogue Wi-Fi access point, or via a compromised network device - sends crafted packets timed to interact with Chrome's SignIn flow while the user authenticates with a Google account. The crafted traffic triggers the information leak, exposing sensitive data such as session tokens or identity artifacts that the attacker captures for subsequent account access or session hijacking. |
| Remediation | The primary remediation is to update Google Chrome to version 152.0.7977.65 or later, which addresses this vulnerability per the vendor stable-channel release advisory at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
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