What’s Vulnerable › Vulnerabilities

CVE-2026-41990

• Severity: medium (CVSS 4.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-23 · updated 2026-10-26
• Weakness: CWE-787

Description

Libgcrypt before 1.12.2 mishandles Dilithium signing. Writes to a static array lack a bounds check but do not use attacker-controlled data.

Affected products

• gnupg Libgcrypt: from 1.12.0 before 1.12.2 — fixed in 1.12.2

How to fix

Upgrade to a fixed version: gnupg Libgcrypt 1.12.2. Check the vendor advisory for mitigations.

References

• https://dev.gnupg.org/T8208
• https://lists.gnupg.org/pipermail/gnupg-announce/2026q2/000503.html
• https://www.openwall.com/lists/oss-security/2026/04/21/1

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