CVE-2026-8888
High · 7.5CVSS
7.5
EPSS
0.6%
Published
Jun 3, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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