Version 3.0.7 of the Securly Chrome Extension uses deprecated SHA-1 hashing for IWF CSAM…
Priority LOW 38CWE-407Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-407.
Summary
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).
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00249 16th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-8889
- 2026-10-03 Alias added: GHSA-7qqf-r2pg-xhqj
References
Advisory 1
More Securly vulnerabilities
- TI-2026-07798 Hard-coded credentials in Securly Chrome Extension CVSS 3.1HIGH 7.3
- TI-2026-07810 Regular expression denial of service in Securly Chrome Extension CVSS 3.1HIGH 7.5
- TI-2026-07801 Version 3.0.7 of the Securly Chrome Extension dynamically registers content13.min.js as a… CVSS 3.1HIGH 7.5
- TI-2026-07803 Version 3.0.7 of the Securly Chrome Extension uses EVP_BytesToKey key derivation with MD5… CVSS 3.1HIGH 7.5
- TI-2026-07800 Version 3.0.7 of the Securly Chrome Extension exposes multiple publicly accessible… CVSS 3.1HIGH 7.5
- TI-2026-07796 Cleartext transmission of sensitive information in Securly Chrome Extension CVSS 3.1HIGH 7.1
Sources
- CVE-2026-8889 · CVE Program
- CVE-2026-8889 · NVD
- FIRST EPSS
- GHSA-7qqf-r2pg-xhqj · GitHub Advisory Database · CC BY 4.0
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