CVE-2026-8888

7.5 highEPSS 0.4%

High (7.5) in securly securly. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-31)
CWEs: CWE-917, CWE-1333
Published: 2026-06-03
Modified: 2026-07-22
Record from: the NVD, synced 2026-10-19

Affected

securly:securly

References

https://kb.cert.org/vuls/id/595768

Check your stack JSON