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.

Project Subscriptions

Vendors Products
Securly Subscribe
Securly Subscribe
Securly Chrome Extension Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
History

Fri, 05 Jun 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Securly securly
Weaknesses CWE-917
CPEs cpe:2.3:a:securly:securly:3.0.7:*:*:*:*:chrome:*:*
Vendors & Products Securly securly

Fri, 05 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Securly
Securly securly Chrome Extension
Vendors & Products Securly
Securly securly Chrome Extension

Thu, 04 Jun 2026 22:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400

Thu, 04 Jun 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1333
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 03 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400

Wed, 03 Jun 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title CVE-2026-8888
References

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2026-06-04T19:48:31.510Z

Reserved: 2026-05-18T20:40:05.298Z

Link: CVE-2026-8888

cve-icon Vulnrichment

Updated: 2026-06-04T19:48:09.767Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-03T19:16:39.807

Modified: 2026-06-05T20:46:45.293

Link: CVE-2026-8888

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-05T22:30:06Z

Weaknesses