CVE-2026-8876

HIGHNVD 7.3

7.3

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.

CVSS v3: 7.3
EG Score: 0.0(none)
EPSS: 4.4%
KEV: Not listed

Published

June 3, 2026

Last Modified

June 4, 2026

References (1)

cret@certhttps://kb.cert.org/vuls/id/595768

Vendor Advisories for CVE-2026-8876(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

GHSA-ph4h-q38c-6xg4
GitHub Security AdvisoriesHigh
Version 3.0.7 of the Securly Chrome Extension contains hardcoded, plaintext AES passphrases in...

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-798Use of Hard-coded Credentials

Data Freshness Timeline

(refreshed 2× in last 7d / 2× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:10 UTCepss_batch
2026-06-03 18:55 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-8876?

CVE-2026-8876 is a high vulnerability published on June 3, 2026. 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.

When was CVE-2026-8876 disclosed?

CVE-2026-8876 was first published in the National Vulnerability Database on June 3, 2026, with the most recent update on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-8876 actively exploited?

CVE-2026-8876 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-8876?

CVE-2026-8876 has a CVSS v3 base score of 7.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 0.0.

How do I remediate CVE-2026-8876?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8876, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-8876

📅 Published

🔄 Last Modified

🔗 References (1)

📣 Vendor Advisories for CVE-2026-8876(1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)