Resource Exhaustion The advisory has been revoked - it doesn't affect any version of package rubygem-psych (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALMALINUX10-RUBYGEMPSYCH-14872192
- published6 Jan 2026
- disclosed10 Dec 2025
Introduced: 10 Dec 2025
CVE-2025-58767 (opens in a new tab)Amendment
The AlmaLinux security team deemed this advisory irrelevant for AlmaLinux:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rubygem-psych package and not the rubygem-psych package as distributed by AlmaLinux.
REXML is an XML toolkit for Ruby. The REXML gems from 3.3.3 to 3.4.1 has a DoS vulnerability when parsing XML containing multiple XML declarations. If you need to parse untrusted XMLs, you may be impacted to these vulnerabilities. The REXML gem 3.4.2 or later include the patches to fix these vulnerabilities.
References
- https://errata.almalinux.org/8/ALSA-2025-23062.html
- https://errata.almalinux.org/9/ALSA-2025-23063.html
- https://errata.almalinux.org/10/ALSA-2025-23141.html
- https://access.redhat.com/security/cve/CVE-2025-58767
- https://access.redhat.com/errata/RHSA-2025:23062
- https://access.redhat.com/errata/RHSA-2025:23063
- https://access.redhat.com/errata/RHSA-2025:23141
- https://github.com/ruby/rexml/commit/5859bdeac792687eaf93d8e8f0b7e3c1e2ed5c23
- https://github.com/ruby/rexml/security/advisories/GHSA-c2f4-jgmc-q2r5