CVE-2021-27884

Summary

CVECVE-2021-27884
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-03-01 23:15:00 UTC
Updated2021-03-08 16:24:00 UTC
DescriptionWeak 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.

Risk And Classification

Problem Types: CWE-330

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Ymfe Yapi All All All All

References

ReferenceSourceLinkTags
GHSL-2020-228: Weak JSON Web Token (JWT) signing secret in YApi - GitHub Security Lab MISC securitylab.github.com Third Party Advisory
GitHub Security Lab (GHSL) Vulnerability Report: `GHSL-2020-228` · Issue #2117 · YMFE/yapi · GitHub MISC github.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 981997 Nodejs (npm) Security Update for yapi-vendor (GHSA-2h3h-vw8r-82rp)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report