Updated advisory posts against rubysec/ruby-advisory-db@94dccfd

Author: jasnow

advisories/_posts/2026-10-01-CVE-2026-67987.md

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+---
+layout: advisory
+title: 'CVE-2026-67987 (ruby_llm): Polynomial-Time Regular Expression Denial of Service
+  (ReDoS) vulnerability'
+comments: false
+categories:
+- ruby_llm
+advisory:
+  gem: ruby_llm
+  cve: 2026-67987
+  ghsa: 5m38-526f-3498
+  url: https://nvd.nist.gov/vuln/detail/CVE-2026-67987
+  title: Polynomial-Time Regular Expression Denial of Service (ReDoS) vulnerability
+  date: 2026-10-01
+  description: |-
+    crmne/ruby_llm at commit fa6f279847d6d7027814539d9c0dfc3bbdfd2a83
+    contains polynomial-time regular expression denial-of-service
+    conditions in think-tag response parsing on Ruby 3.1.x.
+    A malicious or anomalous model response containing many unterminated
+    tags can cause excessive CPU consumption in two consecutive
+    regular expressions and delay chat-completion processing.
+  cvss_v3: 7.5
+  unaffected_versions:
+  - "< 0.1.0.pre42"
+  patched_versions:
+  - ">= 2.0.0.rc1"
+  related:
+    url:
+    - https://nvd.nist.gov/vuln/detail/CVE-2026-67987
+    - https://github.com/crmne/ruby_llm/releases#release-v2.0.0.rc1
+    - https://rubygems.org/gems/ruby_llm/versions/2.0.0.rc1
+    - https://github.com/crmne/ruby_llm/commit/5e88411f171721b381853fa77d254e266dcf6ad8
+    - https://github.com/crmne/ruby_llm/blob/fa6f279847d6d7027814539d9c0dfc3bbdfd2a83/lib/ruby_llm/protocols/chat_completions/chat.rb#L355-L356
+    - https://github.com/advisories/GHSA-5m38-526f-3498
+  notes: |
+    - cvss_v3 from nvd.nist.gov and GHSA URL
+    - /commit/ URL mentioend this CVE number and patch version.
+    - Unreviewed GHSA advisory
+---

advisories/_posts/2026-10-01-CVE-2026-67989.md

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+---
+layout: advisory
+title: 'CVE-2026-67989 (ruby_llm): Polynomial-Time Regular Expression Denial of Service
+  (ReDoS) vulnerability'
+comments: false
+categories:
+- ruby_llm
+advisory:
+  gem: ruby_llm
+  cve: 2026-67989
+  ghsa: 57hg-jgw4-wcqw
+  url: https://nvd.nist.gov/vuln/detail/CVE-2026-67989
+  title: Polynomial-Time Regular Expression Denial of Service (ReDoS) vulnerability
+  date: 2026-10-01
+  description: |-
+    crmne/ruby_llm at commit fa6f279847d6d7027814539d9c0dfc3bbdfd2a83
+    contains a polynomial-time regular expression denial-of-service
+    condition in Mistral model capability matching on Ruby 3.1.x.
+  cvss_v3: 7.5
+  unaffected_versions:
+  - "< 0.1.0.pre42"
+  patched_versions:
+  - ">= 2.0.0.rc1"
+  related:
+    url:
+    - https://nvd.nist.gov/vuln/detail/CVE-2026-67989
+    - https://github.com/crmne/ruby_llm/releases#release-v2.0.0.rc1
+    - https://rubygems.org/gems/ruby_llm/versions/2.0.0.rc1
+    - https://github.com/crmne/ruby_llm/commit/dd3c84812598def03d4aff77b5447c41d8f5c34e
+    - https://github.com/crmne/ruby_llm/blob/fa6f279847d6d7027814539d9c0dfc3bbdfd2a83/lib/ruby_llm/providers/mistral/capabilities.rb#L92
+    - https://github.com/advisories/GHSA-57hg-jgw4-wcqw
+  notes: |
+    - cvss_v3 from nvd.nist.gov and GHSA URL
+    - /commit/ URL mentioend this CVE number and patch version.
+    - Unreviewed GHSA advisory
+---