CVE-2026-41990

low-risk
Published 2026-04-23

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

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.0/10 Medium
LOCAL / HIGH complexity

Affected Products (1)

Libgcrypt

Affected Vendors

Gnupg

References (3)

Broken Link https://dev.gnupg.org/T8208
Mailing List https://lists.gnupg.org/pipermail/gnupg-announce/2026q2/000503.html
Mailing List https://www.openwall.com/lists/oss-security/2026/04/21/1
15
/ 100
low-risk
Severity 10/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal