How severe is CVE-2026-8876?

CVE-2026-8876 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-8876 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-8876?

CVE-2026-8876 affects Securly. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-8876?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-8876 have an EU (EUVD) identifier?

Yes. CVE-2026-8876 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34162.

When was CVE-2026-8876 published?

CVE-2026-8876 was published on 2026-06-03 and last updated on 2026-06-17.

CVE-2026-8876

CVE-2026-8876 is a high-severity vulnerability in Securly with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34162
Weakness: CWE-798
Affected product: Securly
Published: 2026-06-03
Last modified: 2026-06-17

Description

Version 3.0.7 of the Securly Chrome Extension contains hardcoded, plaintext AES passphrases in securly.min.js. These keys decrypt crisis alert keyword data and intervention site data.

Frequently asked questions

What is CVE-2026-8876?: Version 3.0.7 of the Securly Chrome Extension contains hardcoded, plaintext AES passphrases in securly.min.js. These keys decrypt crisis alert keyword data and intervention site data.
How severe is CVE-2026-8876?: CVE-2026-8876 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-8876 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-8876?: CVE-2026-8876 affects Securly. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-8876?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-8876 have an EU (EUVD) identifier?: Yes. CVE-2026-8876 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34162.
When was CVE-2026-8876 published?: CVE-2026-8876 was published on 2026-06-03 and last updated on 2026-06-17.

References

https://kb.cert.org/vuls/id/595768

Affected products (1)

cpe:2.3:a:securly:securly:3.0.7:*:*:*:*:chrome:*:*

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