VulnSocial

CVE-2026-70482Disclosure(openwebui / open_webui)

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.0 until 0.11.0, when ENABLE_OAUTH_TOKEN_EXCHANGE=True, /oauth/{provider}/token/exchange accepts a raw provider access token and validates it by calling the provider userinfo endpoint without confirming which OAuth client the token was issued to. Anyone holding an access token minted for any client registered with the same provider could exchange it for an Open WebUI session as that token user, including applications the operator does not control and has never authorized. This issue is fixed in 0.11.0.

openwebui CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Patch / fix
Exploit / PoC references
Other references
Weakness type (CWE)
CWE-287

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • open_webui

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
openwebui
Products
open_webui

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-06: 1Technical Details · 2026-08-06: 108-06
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Cyber Threat Observatory | Alan Turing Institute@TuringCyberObs
    Disclosure

    CVE-2026-70482 Open WebUI OAuth token-exchange bypass could let attackers convert a raw provider access token into a full Open WebUI session where token exchange is enabled Full analysis: https://github.com/alan-turing-institute/cyber-threat-observatory/blob/main/reports/2026-08-04/TIER_2_CVE-2026-70482.md #CyberSecurity #IdentitySecurity #VulnerabilityManagement

    Post summary

    The post announces an OAuth token‑exchange bypass in Open WebUI, allowing attackers to upgrade a raw access token into a full session, and provides a link to a detailed analysis, but no PoC, exploit, or patch is mentioned.

    0000060
    59 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appopenwebuiopen_webui---

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