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A vulnerability in Node.js related to OpenSSL CMP password-based protection verification causes the check to only verify that the protectionAlg parameter is not NULL, without properly validating its ASN.1 structure. This issue is tracked as CVE-2026-63076 and affects multiple specific Node.js versions, primarily in Ubuntu packages. The vulnerability has a CVSS score of 7.5, indicating a medium severity with a potential impact on availability. A patch is available to address this issue.

CVE-2026-63076 describes a vulnerability in Node.js where the OpenSSL CMP password-based protection verification process only checks that the protectionAlg parameter is not NULL, but does not validate its ASN.1 encoding properly. This improper validation could lead to issues affecting the availability of the Node.js service. The vulnerability affects numerous specific Ubuntu Node.js package versions, as enumerated in the affectedVersions list. The CVSS v3.1 score is 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), indicating network exploitable with low attack complexity, no privileges or user interaction required, no confidentiality or integrity impact, but high impact on availability. Patches are available from Ubuntu security notices USN-8678-1 and USN-8678-2.

Detailed information about Nodejs: Invalid Pointer Dereference in CMP Server via Crafted protectionAlg (CVE-2026-63076) affecting null nodejs. Get real-time upd

Nodejs: Invalid Pointer Dereference in CMP Server via Crafted protectionAlg (CVE-2026-63076) - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-63076 Invalid Pointer Dereference in CMP Server via Crafted protectionAlg - VEX

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Nodejs: Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1… (CVE-2026-63076)

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