CVE-2026-70481Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform.
Updated under an hour ago ()
Does this affect you?
It affects openwebui open_webui. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.0, the standard channel message update and delete handlers accepted any caller holding write access on the channel without checking that the caller wrote the message. Because write access is the same grant a member needs to post, any ordinary participant in a shared standard channel could rewrite or permanently delete another participant message, while group and direct message handlers enforced authorship. This issue is fixed in 0.11.0.
- CVSS
- 5.4 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
- Weakness (CWE)
- CWE-284, CWE-862
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Sep 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
openwebui open_webui openwebui:open_webui | from 0.5.0 before 0.11.0 | NVD |
References
- https://github.com/open-webui/open-webui/commit/c609ec41154fa092fa0af80d9d365de06b666286patch
- https://github.com/open-webui/open-webui/pull/27197patch, vendor-advisory
- https://github.com/open-webui/open-webui/releases/tag/v0.11.0release-notes
- https://github.com/open-webui/open-webui/security/advisories/GHSA-mj5r-jf49-m3w7exploit, patch, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.