{"id":"BIT-node-2025-55131","details":"A flaw in Node.js's buffer allocation logic can expose uninitialized memory when allocations are interrupted, when using the `vm` module with the timeout option. Under specific timing conditions, buffers allocated with `Buffer.alloc` and other `TypedArray` instances like `Uint8Array` may contain leftover data from previous operations, allowing in-process secrets like tokens or passwords to leak or causing data corruption. While exploitation typically requires precise timing or in-process code execution, it can become remotely exploitable when untrusted input influences workload and timeouts, leading to potential confidentiality and integrity impact.","aliases":["BIT-node-min-2025-55131","CVE-2025-55131"],"modified":"2026-07-06T08:01:01.840279009Z","published":"2026-01-26T14:47:51.686Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*"]},"references":[{"type":"WEB","url":"https://nodejs.org/en/blog/vulnerability/december-2025-security-releases"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55131"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:1842"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:1843"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2420"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2421"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2422"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2767"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2768"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2781"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2782"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2783"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2864"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2899"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:6402"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:6431"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:7386"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:7387"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2025-55131"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2431350"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-55131.json"}],"affected":[{"package":{"name":"node","ecosystem":"Bitnami","purl":"pkg:bitnami/node"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"20.20.0"},{"introduced":"21.0.0"},{"fixed":"22.22.0"},{"introduced":"23.0.0"},{"fixed":"24.13.0"},{"introduced":"25.0.0"},{"fixed":"25.3.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/node/BIT-node-2025-55131.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L"}]}],"schema_version":"1.7.5"}