Sensitive-data decryption via hardcoded AES passphrases
Published Jun 3, 2026 · Updated Jun 3, 2026
Information disclosure in Securly Chrome Extension 3.0.7 and earlier allows remote attackers to obtain AES passphrases from securly.min.js. The extension stores the plaintext passphrases in its client-side JavaScript bundle and uses them to decrypt crisis alert keywords and intervention site data. Access requires retrieving or inspecting the distributed extension code; the exposed keys compromise the confidentiality of protected filtering data.
Summary
What happened
Information disclosure in Securly Chrome Extension 3.0.7 and earlier allows remote attackers to obtain AES passphrases from securly.min.js. The extension stores the plaintext passphrases in its client-side JavaScript bundle and uses them to decrypt crisis alert keywords and intervention site data. Access requires retrieving or inspecting the distributed extension code; the exposed keys compromise the confidentiality of protected filtering data.
The record
- CVE
- CVE-2026-8876
- Published
- Jun 3, 2026
- Updated
- Jun 3, 2026
- Vendor
- Securly
- Product
- Securly Chrome Extension
- Classifications
- CWE-798, CWE-321, T1552.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 3, 2026CVE publishedPublication date reported by the CVE source.
- Jun 3, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=3.0.7
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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