Source: node-deepmerge Version: 4.3.1+~1.1.1-1 Severity: important Tags: security upstream Forwarded: https://github.com/TehShrike/deepmerge/issues/273 X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for node-deepmerge. CVE-2026-93753[0]: | deepmerge through 4.3.1 contains a prototype poisoning vulnerability | in the mergeObject() function that fails to properly validate keys | being written to target objects. Attackers can supply malicious | source objects in merge operations to inject attacker-controlled | properties into the returned object's prototype, causing | applications to inherit unintended values when accessing properties | without own-property checks. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-93753 https://www.cve.org/CVERecord?id=CVE-2026-93753 [1] https://github.com/TehShrike/deepmerge/issues/273 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
