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Ubuntu Security Notice USN-7695-1
August 14, 2025

ruby-sidekiq vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in Sidekiq.

Software Description:
- ruby-sidekiq: Simple, efficient background processing for Ruby

Details:

Anas Roubi discovered that Sidekiq did not correctly sanitize certain
inputs. An attacker could possibly use this issue to execute a cross-site
scripting (XSS) attack. This issue only affected Ubuntu 18.04 LTS, and
Ubuntu 20.04 LTS. (CVE-2021-30151)

It was discovered that Sidekiq did not correctly bound certain inputs. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2022-23837)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
  ruby-sidekiq                    6.3.1+dfsg-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro

Ubuntu 20.04 LTS
  ruby-sidekiq                    5.2.7+dfsg-1ubuntu0.1~esm1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  ruby-sidekiq                    5.0.4+dfsg-2ubuntu0.1~esm1
                                  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-7695-1
  CVE-2021-30151, CVE-2022-23837