Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.2 before 0.10.0, the SKILL_MENTION_RE and strip_re regular expressions in backend/open_webui/utils/middleware.py parsed <$skillId|label> skill mentions with overlapping quantifiers, allowing an authenticated chat message containing <$ without a closing > to trigger quadratic backtracking and block the asyncio event loop. This issue is fixed in version 0.10.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| open-webui | open-webui | >= 0.9.2, < 0.10.0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | open-webui | >= 0.9.2, < 0.10.0 | 0.10.0 | GHSA-ffpj-xv5c-p3gw |