CVE-2026-33176 Rails Active Support has a possible DoS vulnerability in its number helpers

Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, Active Support number helpers accept strings containing scientific notation e.g. 1e10000, which BigDecimal expands into extremely large...

CVE-2026-33170

CVE-2026-33170 concerns Active Support (Rails core extensions) where SafeBuffer#% fails to propagate the @html_unsafe flag to a newly created buffer. This can cause in-place mutations (e.g., gsub!) followed by formatting with % using untrusted input to produce a result where html_safe? remains tr...

CVE-2026-33170 Rails Active Support has a possible XSS vulnerability in SafeBuffer#%

Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, SafeBuffer% does not propagate the @htmlunsafe flag to the newly created buffer. If a SafeBuffer is mutated in place e.g. via gsub! and th...

CVE-2026-33169

CVE-2026-33169 affects Active Support (Rails core extensions). The issue arises in NumberToDelimitedConverter, which uses a lookahead-based regular expression with gsub! to insert thousands delimiters. Interaction between a repeated lookahead group and gsub! can cause quadratic time complexity on...

CVE-2026-33169 Rails Active Support has a possible ReDoS vulnerability in number_to_delimited

Active Support is a toolkit of support libraries and Ruby core extensions extracted from the Rails framework. NumberToDelimitedConverter uses a lookahead-based regular expression with gsub! to insert thousands delimiters. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, the interaction between th...

Rails Active Support has a possible ReDoS vulnerability in number_to_delimited

Impact NumberToDelimitedConverter used a regular expression with gsub! to insert thousands delimiters. This could produce quadratic time complexity on long digit strings. Releases The fixed releases are available at the normal locations. Credit This issue was responsibly reported by Hackerone...

Rails Active Support has a possible ReDoS vulnerability in number_to_delimited

Impact NumberToDelimitedConverter used a regular expression with gsub! to insert thousands delimiters. This could produce quadratic time complexity on long digit strings. Releases The fixed releases are available at the normal locations...

SUSE CVE-2015-3227

The 1 jdom.rb and 2 rexml.rb components in Active Support in Ruby on Rails before 4.1.11 and 4.2.x before 4.2.2, when JDOM or REXML is enabled, allow remote attackers to cause a denial of service SystemStackError via a large XML document depth...