CVE-2026-41990
libgcrypt20: Libgcrypt before 1.12.2 mishandles Dilithium signing
CVE-2026-41990 is fixed in 3 products on 1 platform, first by libgcrypt-bin 1.12.0-2ubuntu0.1, released April 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
4.0
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0023
13th percentile
Libgcrypt before 1.12.2 mishandles Dilithium signing. Writes to a static array lack a bounds check but do not use attacker-controlled data.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libgcrypt · opensuse-leap 16.0 | 1.12.1-160000.2.1 | OPENSUSE-SU-2026:21047-1 | Jun 24, 2026 |
| libgcrypt · sles 16.0 | 1.12.1-160000.2.1 | SUSE-SU-2026:22355-1 | Jun 24, 2026 |
| libgcrypt-bin · Ubuntu 26.04.1 LTS (resolute) | 1.12.0-2ubuntu0.1 | libgcrypt-bin 1.12.0-2ubuntu0.1 | Apr 22, 2026 |
| libgcrypt20 · Debian 14 | 1.12.2-1 | DEBIAN-CVE-2026-41990 | May 15, 2026 |
| libgcrypt20 · Ubuntu 26.04.1 LTS (resolute) | 1.12.0-2ubuntu0.1 | libgcrypt20 1.12.0-2ubuntu0.1 | Apr 22, 2026 |
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