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CVE-2026-8888

—
CVSS 3.1
7.5 high
EPSS
<1%p36
Published
()
Modified
Description

Version 3.0.7 of the Securly Chrome Extension downloads config.json over HTTP and compiles server-provided patterns as JavaScript regular expressions via new RegExp() without complexity validation. An on-path attacker can inject specific patterns to cause catastrophic backtracking, resulting in denial of service on all browsing.

Vendors
securly
Products
securly
Weakness
CWE-917, CWE-1333
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD CVE.org GitHub PoCs EPSS (0.4%)

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