Open WebUI 0.11.0 before 0.11.4 contains a denial of service vulnerability in the automation recurrence-rule validator, whose sub-daily frequency…
Open WebUI 0.11.0 before 0.11.4 contains a denial of service vulnerability in the automation recurrence-rule validator, whose sub-daily frequency guard parses rule text more strictly than the calendar library that executes it. Users permitted to create automations can submit whitespace-folded rules (or, in 0.11.0, lowercase frequencies or omitted RRULE prefixes) that expand per-second synchronously, blocking the shared event loop for minutes per request and on every scheduler poll.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Product
- AI / LLM tooling
- CVSS
- 6.5
- Exposure class
- AI infrastructure
Why it ranks 8 (Routine)
- CVSS 6.5 medium
- Product class: AI infrastructure
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-109297 on this site · NVD · CVE.org · Vulnpedia
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