CVE-2024-47889mediumCWE-1333

CVE-2024-47889: medium-severity vulnerability in rails

Action Mailer has possible ReDoS vulnerability in block_format

Published · Updated

Follow this CVE+ Monitor rails+ Monitor rails

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.6epss 0.9%
Action Mailer is a framework for designing email service layers. Starting in version 3.0.0 and prior to versions 6.1.7.9, 7.0.8.5, 7.1.4.1, and 7.2.1.1, there is a possible ReDoS vulnerability in the block_format helper in Action Mailer. Carefully crafted text can cause the block_format helper to take an unexpected amount of time, possibly resulting in a DoS vulnerability. All users running an affected release should either upgrade to versions 6.1.7.9, 7.0.8.5, 7.1.4.1, or 7.2.1.1 or apply the relevant patch immediately. As a workaround, users can avoid calling the `block_format` helper or upgrade to Ruby 3.2. Ruby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected. Rails 8.0.0.beta1 requires Ruby 3.2 or greater so is unaffected.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
Affected products
rails · rails
Related CVEs — rails

In the same product, most dangerous first.

CVE-2026-66066CRITICALAction Pack: Possible arbitrary file read and remote code execution in Active Storage variant processingEPSS 30.1%CVE-2022-23633HIGHExposure of sensitive information in Action PackEPSS 2.2%CVE-2024-26142HIGHRails possible ReDoS vulnerability in Accept header parsing in Action DispatchEPSS 1.5%CVE-2024-26144MEDIUMPossible Sensitive Session Information Leak in Active StorageEPSS 1.3%CVE-2010-3299—CVE-2010-3299EPSS 1.1%CVE-2024-41128MEDIUMAction Dispatch has possible ReDoS vulnerability in query parameter filteringEPSS 1.1%