CVE-2026-11347

High

Description

The linqi application contains hardcoded cryptographic keys. Additionally, the application uses a weak algorithm with a limited ASCII charset to dynamically generate Initialization Vectors (IVs) for AES/CBC encryption, making known-plaintext attacks feasible. An attacker with local access can leverage these vulnerabilities to decrypt sensitive obfuscated strings, including ConnectionString values containing database credentials from appsettings.json.

SeverityHigh

CVSS8.5

Exploit probability—

ProductLinqi

PublishedJun 5, 2026

First seenJun 5, 2026

Weakness typeCWE-321CWE-321 CWE-338CWE-338

How to fix

Vendor advisories

linqi.help/en/reference/security/security-advisories/#security-advisory-hardcoded-cryptographic-keys-and-weak-iv-generation-in-linqi

Affected products

Product	Affected versions	Fixed in
linqi GmbH linqi	v ≤ 1.4.8.5	—

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