CVE-2021-28965

The CVE-2021-28965 issue concerns the Ruby REXML library: specifically the REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x before 2.7.3, and 3.x before 3.0.1. The root cause is improper handling of XML round-trips, which can produce an incorrect XML document after parsing and serializing. Seve...

CVE-2024-41946

CVE-2024-41946 is a Denial of Service (DoS) vulnerability in the Ruby REXML XML toolkit. It affects the REXML gem when parsing XML that contains many entity expansions using SAX2 or the pull parser API. The issue is fixed in REXML gem version 3.3.3 and later; older releases (notably 3.3.2) are vu...

CVE-2024-35176

CVE-2024-35176 affects the Ruby REXML XML toolkit. The vulnerability is a Denial of Service in the REXML gem when parsing XML that contains many

CVE-2024-43398

REXML DoS in Ruby: the vulnerability CVE-2024-43398 affects the REXML gem when parsing XMLs with many deep elements that have the same local name attributes. It is exploitable via tree parser usage (e.g., REXML::Document.new); stream parser and SAX2 APIs are not affected. Versions prior to 3.3.6 ...

CVE-2024-39908

REXML (Ruby) DoS vulnerabilities (CVE-2024-39908) affect the Ruby REXML gem prior to versions 3.3.1, with issues when parsing XML containing specific characters such as . Patches are in 3.3.2 and later; upgrades to 3.3.2+ are advised. If upgrading is not possible, avoid parsing untrusted XML stri...

CVE-2024-49761

CVE-2024-49761 affects the Ruby ecosystem via the REXML XML toolkit. The vulnerability exists in the REXML gem before 3.3.9, where parsing an XML containing hex numeric character references (&#x...;) with many digits can cause a ReDoS. Ruby 3.2+ is not affected; Ruby 3.1 is the affected maintaine...

CVE-2024-41123

REXML (Ruby) DoS vulnerability CVE-2024-41123 affects the REXML gem in versions prior to 3.3.2, triggered when parsing XML containing specific characters (whitespace, >], ]>). The advisory notes that REXML 3.3.3 and later include patches to fix this issue. Several connected sources corrobor...