Open WebUI: ReDoS in skill-mention regexes causes whole-instance DoS on default config
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| open-webui | open-webui | affected |
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| Open-webui | Open-webui |
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| Source | ID | Title |
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Github GHSA |
GHSA-ffpj-xv5c-p3gw | Open WebUI: ReDoS in skill-mention regexes causes whole-instance DoS on default config |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.573% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Open-webui
Open-webui open-webui |
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| Vendors & Products |
Open-webui
Open-webui open-webui |
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| 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. | |
| Title | Open WebUI: ReDoS in skill-mention regexes causes whole-instance DoS on default config | |
| Weaknesses | CWE-1333 | |
| References |
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| Metrics |
cvssV3_1
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