CVE-2026-41990

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

CVSS v3 4.0 MEDIUM

4.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.4 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://dev.gnupg.org/T8208	Broken Link
https://lists.gnupg.org/pipermail/gnupg-announce/2026q2/000503.html	Mailing List Release Notes
https://www.openwall.com/lists/oss-security/2026/04/21/1	Mailing List Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) Libgcrypt anterior a 1.12.2 maneja incorrectamente la firma Dilithium. Las escrituras en un array estático carecen de una comprobación de límites, pero no utilizan datos controlados por el atacante.

Information

Published : 2026-04-23 05:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-41990

Mitre link : CVE-2026-41990

CVE.ORG link : CVE-2026-41990

JSON object : View

Products Affected

gnupg

libgcrypt

CWE

CWE-787

Out-of-bounds Write

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