Medium severity5.1NVD Advisory· Published Mar 1, 2021· Updated Jun 17, 2026
CVE-2021-27884
CVE-2021-27884
Description
Weak JSON Web Token (JWT) signing secret generation in YMFE YApi through 1.9.2 allows recreation of other users' JWT tokens. This occurs because Math.random in Node.js is used.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
yapi-vendornpm | < 1.9.3 | 1.9.3 |
Affected products
3- YMFE/YApidescription
Patches
Vulnerability mechanics
References
5- github.com/YMFE/yapi/issues/2117nvdThird Party AdvisoryWEB
- github.com/advisories/GHSA-2h3h-vw8r-82rpghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-27884ghsaADVISORY
- securitylab.github.com/advisories/GHSL-2020-228-YMFE-yapinvdThird Party AdvisoryADVISORY
- github.com/YMFE/yapi/issues/2263ghsaWEB
News mentions
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