BIT-node-min-2026-21713
See a problem?- Import Source
- https://github.com/bitnami/vulndb/tree/main/data/node-min/BIT-node-min-2026-21713.json
- JSON Data
- https://api.osv.dev/v1/vulns/BIT-node-min-2026-21713
- Aliases
-
- BIT-node-2026-21713
- CVE-2026-21713
- Published
- 2026-04-06T07:58:50.453Z
- Modified
- 2026-04-06T08:41:22.040550201Z
- Summary
- [none]
- Details
-
A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior could be exploited as a timing oracle to infer HMAC values.
Node.js already provides timing-safe comparison primitives used elsewhere in the codebase, indicating this is an oversight rather than an intentional design decision.
This vulnerability affects 20.x, 22.x, 24.x, and 25.x.
- Database specific
{ "severity": "Medium", "cpes": [ "cpe:2.3:a:nodejs:node.js:*:*:*:*:*:*:*:*" ] }- References
Affected packages
Bitnami / node-min
Package
- Name
- node-min
- Purl
- pkg:bitnami/node-min
Severity
- 5.9 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator