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
CVE-2026-67989
HIGHPre-NVD 7.57.5—Trending — 5 sources updated this week
EchelonGraph scoreHIGH confidence
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-10-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
7.5EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.5Exploit: None knownExposed services: Not assessed
An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHhigh confidence
- EG Risk
- 49EG Risk 49/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation0% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release. - EPSS PROB
- 0.3%
- EPSS %ILE
- 25th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 2, 2026
Last Modified
October 2, 2026
Advisory Details (3)
Auto-updated Oct 2, 2026Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit
commit dd3c84812598 (crmne/ruby_llm)
Fix landed in crmne/ruby_llm commit dd3c84812598 — awaiting tagged release
https://github.com/crmne/ruby_llm/commit/dd3c84812598def03d4aff77b5447c41d8f5c34egeneric
ruby_llm/lib/ruby_llm/providers/mistral/capabilities.rb at fa6f279847d6d7027814539d9c0dfc3bbdfd2a83 · crmne/ruby_llm · GitHub
https://github.com/crmne/ruby_llm/blob/fa6f279847d6d7027814539d9c0dfc3bbdfd2a83/lib/ruby_llm/providers/mistral/capabilities.rb#L92generic
GitHub - crmne/ruby_llm: The Ruby-native AI framework. Chats, agents, tools, images, audio, and video through one consistent API, in plain Ruby or Rails. · GitHub
https://github.com/crmne/ruby_llmVendor Advisories for CVE-2026-67989(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 14× in last 7d / 14× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-04 08:03 UTCGHSA enrichment
- 2026-10-03 20:09 UTCEG score recompute
- 2026-10-03 20:09 UTCGHSA enrichment
- 2026-10-03 14:26 UTCEPSS rescore
- 2026-10-03 08:14 UTCEG score recompute
- 2026-10-03 08:14 UTCGHSA enrichment
- 2026-10-02 20:20 UTCGHSA enrichment
- 2026-10-02 19:26 UTCEG score recompute▲ 7.50
- 2026-10-02 19:26 UTCGHSA enrichment
- 2026-10-02 19:25 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
- 2026-10-02 19:00 UTCGHSA enrichment
- 2026-10-02 16:25 UTCNVD update
- 2026-10-02 16:13 UTCEG score recompute
- 2026-10-02 16:11 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-67989?
CVE-2026-67989 is a high vulnerability published on October 2, 2026. 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
When was CVE-2026-67989 disclosed?
CVE-2026-67989 was first published on October 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67989 actively exploited?
CVE-2026-67989 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (25th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-67989?
CVE-2026-67989 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-67989?
An upstream fix for CVE-2026-67989 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-67989 are linked in the Vendor Advisories panel on this page.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-67989
Is Your Infrastructure Affected by CVE-2026-67989?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.