VulnSocial

CVE-2026-45671Disclosure(openwebui / open_webui)

LOWCVSS 8.0 · HIGH

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 0.9.0, any authenticated user can permanently delete files owned by other users via DELETE /api/v1/files/{id} when the target file is referenced in any shared chat. The has_access_to_file() authorization gate unconditionally grants access through its shared-chat branch. It checks neither the requesting user's identity nor the type of operation being performed. File UUIDs (which would otherwise be impractical to guess) are disclosed to any user with read access to a knowledge base via GET /api/v1/knowledge/{id}/files. This vulnerability is fixed in 0.9.0.

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

STABLE

Are you affected?

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

  • open_webui

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 3 classified signals
  • Peaked at 2 mentions on most recent observed day (2026-05-21)
  • 3 total mentions across 2 days

Affected systems

Vendors
openwebui
Products
open_webui

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-05-20: 1Mentions · 2026-05-21: 2Technical Details · 2026-05-20: 1Technical Details · 2026-05-21: 105-2005-21
Signal classification1 categories
Disclosure
3100.0%
Referenced assets1 URL
Classification over time
DateTotalLabels
2026-05-201
Disclosure1
2026-05-212
Disclosure2
Full discourse3 posts
  • selva@SelvaKtm2
    Disclosure

    CVE-2026-45671: Open WebUI Flaw Lets Users Delete Any File https://thecybrdef.com/cve-2026-45671-open-webui-flaw-lets-users-delete-any-file/ #Cybertrending #Cybernewsdaily #Cybersecurity

    Post summary

    The post announces CVE‑2026‑45671, a flaw in Open WebUI that allows any user to delete any file, without providing exploit code, patch details, or evidence of active use.

    0000041
    5 followersView on X
  • cybersecuritypath@cybrsecpath
    Disclosure

    CVE-2026-45671: Open WebUI Flaw Lets Users Delete Any File https://thecybrdef.com/cve-2026-45671-open-webui-flaw-lets-users-delete-any-file/ #Cybertrending #Cybernewsdaily #Cybersecurity

    Post summary

    The text announces CVE‑2026‑45671, indicating a flaw that lets users delete any file in Open WebUI, but offers no further technical, exploit, or mitigation details.

    0000045
    9 followersView on X
  • Crypto Master💎 Arichain@Vijaykiran0987
    Disclosure

    CVE-2026-45671: Open WebUI Flaw Lets Users Delete Any File https://thecybrdef.com/cve-2026-45671-open-webui-flaw-lets-users-delete-any-file/ #Cybertrending #Cybernewsdaily #Cybersecurity

    Post summary

    The text announces CVE‑2026‑45671, a flaw in Open WebUI that allows users to delete any file, as reported by the linked article.

    0000047
    64 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appopenwebuiopen_webui---

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