What is CVE-2026-8878?

CVE-2026-8878 is a high-severity vulnerability in Securly, classified under Inadequate Encryption Strength. CVSS score: 7.5/10. Published 2026-06-03.

How severe is CVE-2026-8878?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Securly

CVE-2026-8878

Version 3.0.7 of the Securly Chrome Extension exposes multiple publicly accessible endpoints that allow unauthenticated access to sensitive data. The exposed information consists of SHA-1 hashes that are inadequately obfuscated using a sim…

EPSS: 0.000 (5.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Securly — versions 3.0.7
Securly Chrome Extension — versions 0

Weakness classification (CWE)

CWE-326 — Inadequate Encryption Strength

References

cret@cert.org (Third Party Advisory)

Frequently asked questions

What is CVE-2026-8878?: CVE-2026-8878 is a high-severity vulnerability in Securly, classified under Inadequate Encryption Strength. CVSS score: 7.5/10. Published 2026-06-03.
How severe is CVE-2026-8878?: High severity. CVSS v3 base score is 7.5 out of 10.