CVE-2024-47887: medium-severity vulnerability in rails
Action Controller has possible ReDoS vulnerability in HTTP Token authentication
Published · Updated
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 1.0%
Action Pack is a framework for handling and responding to web requests. Starting in version 4.0.0 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 Action Controller's HTTP Token authentication. For applications using HTTP Token authentication via `authenticate_or_request_with_http_token` or similar, a carefully crafted header may cause header parsing 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. One may choose to use Ruby 3.2 as a workaround.Ruby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected. Rails 8.0.0.beta1 depends on 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 · railsRelated 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%
References
https://github.com/rails/rails/commit/56b2fc3302836405b496e196a8d5fc0195e55049https://github.com/rails/rails/commit/7c1398854d51f9bb193fb79f226647351133d08ahttps://github.com/rails/rails/commit/8e057db25bff1dc7a98e9ae72e0083825b9ac545https://github.com/rails/rails/commit/f4dc83d8926509d0958ec21fcdbc2e7df3d32ce2https://github.com/rails/rails/security/advisories/GHSA-vfg9-r3fq-jvx4