CVE-2026-41990

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{"bugzilla": {"description": "Libgcrypt: Libgcrypt: Denial of Service or data integrity issues from missing bounds check during Dilithium signing.", "id": "2461068", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461068"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in Libgcrypt. During Dilithium signing operations, the library fails to perform a bounds check when writing to a static array. While the data involved is not directly controlled by an attacker, this vulnerability could lead to memory corruption, potentially resulting in a denial of service (DoS) or affecting data integrity."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-41990", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "libgcrypt", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Fix deferred", "package_name": "libgcrypt", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "libgcrypt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "libgcrypt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "libgcrypt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Fix deferred", "package_name": "libgcrypt", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-04-23T04:39:04Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-41990\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-41990\nhttps://dev.gnupg.org/T8208\nhttps://lists.gnupg.org/pipermail/gnupg-announce/2026q2/000503.html\nhttps://www.openwall.com/lists/oss-security/2026/04/21/1"], "threat_severity": "Low"}

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