UBUNTU-CVE-2026-41990

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Source
https://ubuntu.com/security/CVE-2026-41990
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41990.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-41990
Upstream
Downstream
Related
Published
2026-04-23T05:16:00Z
Modified
2026-05-27T14:00:05.749192351Z
Severity
  • 4.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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

References

Affected packages

Ubuntu:26.04:LTS / libgcrypt20

Package

Name
libgcrypt20
Purl
pkg:deb/ubuntu/libgcrypt20?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.12.0-2ubuntu0.1

Affected versions

1.*
1.11.0-7build1
1.11.2-2
1.11.2-3
1.12.0-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libgcrypt-bin",
            "binary_version": "1.12.0-2ubuntu0.1"
        },
        {
            "binary_name": "libgcrypt20",
            "binary_version": "1.12.0-2ubuntu0.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-41990.json"