CVE-2026-8889high

CVE-2026-8889: high-severity vulnerability in Securly Chrome Extension

CVE-2026-8889

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.3%
exploitation probability
0.3%top 77% of all CVEs
observed exploitation
nono source reports it
Version 3.0.7 of the Securly Chrome Extension uses deprecated SHA-1 hashing for IWF CSAM URL matching (25,020 hashes) and CIPA blocklist matching (12,352 hashes).
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Securly · Securly Chrome Extension
Related CVEs — Securly Chrome Extension

In the same product, most dangerous first.

CVE-2026-8888HIGHCVE-2026-8888EPSS 0.6%CVE-2026-8879HIGHCVE-2026-8879EPSS 0.5%CVE-2026-8876HIGHCVE-2026-8876EPSS 0.3%CVE-2026-8878HIGHCVE-2026-8878EPSS 0.3%CVE-2026-8881HIGHCVE-2026-8881EPSS 0.2%CVE-2026-8874HIGHCVE-2026-8874EPSS 0.2%
References
https://kb.cert.org/vuls/id/595768