ruby-jwt: ruby-jwt: Authentication bypass due to empty key in HMAC verification
| Reporter | Title | Published | Views | Family All 38 |
|---|---|---|---|---|
 | CVE-2026-45363 | 14 Jul 202621:32 | – | attackerkb |
 | The vulnerability of the JWT Ruby JWT implementation lies in the authentication process’s flaws, which allow attackers to trigger a service denial. | 7 Jul 202600:00 | – | bdu_fstec |
 | CVE-2026-45363 vulnerabilities | 26 May 202601:18 | – | cgr |
 | CVE-2026-45363 | 14 Jul 202622:16 | – | circl |
 | CVE-2026-45363 | 14 Jul 202621:32 | – | cve |
 | CVE-2026-45363 `jwt` (Ruby gem) - empty-key HMAC bypass | 14 Jul 202621:32 | – | cvelist |
 | CVE-2026-45363 | 14 Jul 202621:32 | – | debiancve |
 | EUVD-2026-44516 | 14 Jul 202621:32 | – | euvd |
 | ruby-jwt: Empty-key HMAC bypass; cross-language sibling of CVE-2026-44351 | 18 May 202617:24 | – | github |
| joserfc: HS256/HS384/HS512 verify accepts empty/nil HMAC key (cross-language sibling of CVE-2026-45363) | 2 Jul 202619:12 | – | github |
10
| OS | OS Version | Architecture | Package | Package Version | Filename |
|---|---|---|---|---|---|
| Red Hat Enterprise Linux | 8 | noarch | rubygem-jwt | 2.10.3-1.el8sat | rubygem-jwt-2.10.3-1.el8sat.noarch.rpm |
| Red Hat Enterprise Linux | 9 | noarch | rubygem-jwt | 2.10.3-1.el9sat | rubygem-jwt-2.10.3-1.el9sat.noarch.rpm |
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
04 Sep 2026 15:04Current
CVSS 3.19.1
EPSS0.00335
SSVC