Open WebUI 0.6.27 before 0.11.4 Session Token Disclosure via OAuth-Mode Connections
Exact source revision recorded 23 Oct 2026 22:48:20 UTC. It does not establish the source's current position. Latest evidence.
cve-program · CVE-2026-109292
PublishedOpen WebUI from 0.6.27 before 0.11.4 contains an information disclosure vulnerability that allows destination servers to obtain user session cookies by receiving the full browser cookie jar on OAuth-mode connections. Operators of OpenAI-compatible connections, OpenAPI tool servers or terminal servers can capture forwarded session cookies from routine requests and replay them to hijack accounts, including administrators.
- Source published
- 12 Oct 2026 16:04:52 UTC
- Source modified
- 23 Oct 2026 21:57:55 UTC
- Observed here
- 23 Oct 2026 22:48:20 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.
CVSS 4.0 · 7.6 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1 · 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N