Out-of-bounds Write The advisory has been revoked - it doesn't affect any version of package rubygem-rss (opens in a new tab)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-CENTOS10-RUBYGEMRSS-18381371
- published29 Jul 2026
- disclosed30 Jun 2026
Introduced: 30 Jun 2026
CVE-2026-54696 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rubygem-rss package and not the rubygem-rss package as distributed by Centos.
Ruby JSON is a JSON implementation for Ruby. Versions 2.9.0 through 2.19.8 are vulnerable to heap buffer overflow when the JSON generator is provided with an oversized streamed object. When streaming to an IO JSON.dump(obj, io) and JSON::State#generate(obj, io) can write past the internal JSON generator buffer when a streamed object contains an attacker-controlled string near 16 KB. Exploitation would result in a reliable process crash/denial of service. This issue has been fixed in version 2.19.9.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2495409
- https://access.redhat.com/security/cve/CVE-2026-54696
- https://access.redhat.com/errata/RHSA-2026:47932
- https://access.redhat.com/errata/RHSA-2026:48482
- https://github.com/ruby/json/releases/tag/v2.19.9
- https://github.com/ruby/json/security/advisories/GHSA-x2f5-4prf-w687