CVE-2026-87557: Missing Authorization in LocalNetworkAccess in Google Chrome Prior to 153.0.8010.36
A NVD · · CVE-2026-87557
Admiralty grading (A–F · 1–6)
Source reliability
- A Completely reliable
- B Usually reliable
- C Fairly reliable
- D Not usually reliable
- E Unreliable
- F Cannot be judged
Information credibility
- 1 Confirmed
- 2 Probably true
- 3 Possibly true
- 4 Doubtful
- 5 Improbable
- 6 Cannot be judged
NATO Admiralty (AJP-2.1) grades confidence, independent of the risk score. Cross-source corroboration isn't tracked for non-CVE news, so single-source items are capped at a lower credibility number; a low number does not imply low quality.
Key metrics
- EPSS
- 0%
Key insight
A vulnerability in Chrome's LocalNetworkAccess mechanism allows an attacker with renderer process access to bypass system resource access restrictions via a crafted HTML page.
Description
CVE-2026-87557 affects missing authorization checks in the LocalNetworkAccess feature of Google Chrome prior to version 153.0.8010.36. An attacker who has compromised the renderer process can bypass system access restrictions through a crafted HTML page. The vulnerability is rated Medium severity by Chromium. The CVE is addressed in regular Chrome security updates and requires timely patching on affected systems.
Risk score
- cvss base
- 0.00
- kev bonus
- 0.00
- epss bonus
- 0.00
- poc bonus
- 0.00
- raw before weight
- 0.00
- industry weight
- 1.21
- freshness factor
- 1.00
- exploitability factor
- 1.00
- days old
- 0.00
- vendor mismatch penalty
- 0.00
Path: operational