🛡️ CVE-2026-8888
🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-917 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-917
Public Exploit ✅ No
Source NVD
Published 2026-06-03
Updated 2026-06-06
Modified 2026-06-05
Fix URL N/A

Affected Packages

Software From version Fixed in
securly
unknown

References

Third Party Advisory, VDB Entry https://kb.cert.org/vuls/id/595768

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