# Ruby Security advisories: CVE-2026-80212 and CVE-2026-80213

- Product: Ruby (https://whatsnew.fyi/product/ruby)
- Vendor: Ruby
- Date: 2026-08-27
- Original notes: https://www.ruby-lang.org/en/news/2026/08/27/multiple-vulnerabilities-in-resolv/
- Permalink: https://whatsnew.fyi/product/ruby/releases/2026-08-27-security-advisories-cve-2026-80212-and-cve-2026-8

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

Two vulnerabilities have been discovered in the resolv gem bundled with Ruby. They have been assigned the CVE identifiers CVE-2026-80212 and CVE-2026-80213 . We recommend upgrading the resolv gem. CVE…

- **security** — Fix CVE-2026-80212 vulnerability in the resolv gem
- **security** — Fix CVE-2026-80213 vulnerability in the resolv gem