VulnSocial

CVE-2026-45385Disclosure(openwebui / open_webui)

LOWCVSS 4.3 · MEDIUM

Signal is active with 2 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 a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, an IDOR vulnerability exists in the Channels feature of Open WebUI, allowing any channel member to modify messages sent by other members (including administrators) within the same channel. In the update_message_by_id function, for group or dm type channels, only the caller's membership in the channel is checked via the is_user_channel_member function, without verifying message ownership. This allows any channel member to modify messages sent by other members within the same channel. This vulnerability is fixed in 0.9.5.

openwebui CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Exploit / PoC references
Weakness type (CWE)
CWE-639

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

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

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
openwebui
Products
open_webui

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-16: 2Technical Details · 2026-05-16: 205-16
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-45385 Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, an IDOR vulnerability exists in the Channels featur… https://www.cve.org/CVERecord?id=CVE-2026-45385 ----- Traducción: CVE-2026-45385 Ope… http://infoflow.cloud`

    Post summary

    The post announces a newly identified IDOR (Insecure Direct Object Reference) vulnerability in Open WebUI (CVE‑2026‑45385) affecting versions prior to 0.9.5, providing basic technical detail but no PoC, exploit, patch, or evidence of active exploitation.

    0000038
    78 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-45385 Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, an IDOR vulnerability exists in the Channels featur… https://www.cve.org/CVERecord?id=CVE-2026-45385

    Post summary

    The post discloses that CVE-2026-45385 is an IDOR flaw affecting the Channels feature of Open WebUI versions before 0.9.5, with no mention of active exploitation, PoC, or patch.

    00000233
    57.5K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appopenwebuiopen_webui---

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