Description
ruby-jwt v3.0.0.beta1 was discovered to contain weak encryption. NOTE: the Supplier's perspective is "keysize is not something that is enforced by this library. Currently more recent versions of OpenSSL are enforcing some key sizes and those restrictions apply to the users of this gem also."
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ruby-jwt | No fix yet | — |
| Debian 13 | ruby-jwt | No fix yet | — |
| Debian 12 | ruby-jwt | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | ruby-jwt | No fix yet | — |
| Ubuntu 26.04 LTS | ruby-jwt | No fix yet | — |
| Ubuntu 25.10 | ruby-jwt | No fix yet | — |
| Ubuntu 24.04 LTS | ruby-jwt | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | ruby-jwt | No fix yet | — |
| Ubuntu Pro 20.04 LTS | ruby-jwt | No fix yet | — |
| Ubuntu Pro 18.04 LTS | ruby-jwt | No fix yet | — |
| Ubuntu Pro 16.04 LTS | ruby-jwt | No fix yet | — |