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CVE Record

CVE-2026-0765: Open WebUI PIP install_frontmatter_requirements Command Injection Remote Code Execution Vulnerability

Open WebUI PIP install_frontmatter_requirements Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Open WebUI. Authentication is required to exploit this vulnerability. The specific flaw exists within the install_frontmatter_requirements function.The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-28258.

HighCVSS 8.8Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-0765 is a high-severity command injection issue in Open WebUI. A logged-in attacker could make the application run operating-system commands as the Open WebUI service account. This can lead to data theft, system modification, or service disruption depending on that account’s privileges.

Executive priority

Treat as urgent for exposed or multi-user Open WebUI deployments. Prioritize inventory, access restriction, and vendor guidance review. Business impact could be high because successful exploitation may execute code on the host running Open WebUI.

Technical view

The flaw is in Open WebUI’s install_frontmatter_requirements function. The advisory states user-supplied input is not properly validated before being used in a system call, resulting in CWE-78 command injection. The listed affected version is Open WebUI 0.6.32. CVSS is 8.8, with network access, low complexity, low privileges, and no user interaction.

Likely exposure

Exposure is most relevant where Open WebUI 0.6.32 is deployed and reachable by users who can authenticate. Internet-facing or broadly accessible instances carry higher risk. The source bundle does not establish whether other versions are affected or fixed.

Exploitation context

Authentication is required. The sources support remote code execution in the service account context, but do not provide evidence of active exploitation. The CVE is not listed as KEV in the provided bundle.

Researcher notes

Key unknowns remain: source bundle does not name a fixed version, patch commit, or exploit activity. Avoid assuming broader version impact beyond 0.6.32. Validation should focus on version identification, reachable authenticated users, service-account privileges, and official advisory updates.

Mitigation direction

  • Identify any Open WebUI 0.6.32 deployments.
  • Check Open WebUI and ZDI guidance for fixed versions or official mitigations.
  • Restrict Open WebUI access to trusted users and networks.
  • Run the service with least-privilege permissions.
  • Monitor for suspicious child processes or unexpected package installation activity.

Validation and detection

  • Confirm installed Open WebUI versions across environments.
  • Review exposure: internet-facing, internal-only, or restricted administration access.
  • Verify authentication is required for relevant Open WebUI functions.
  • Check service account privileges and filesystem access.
  • Review logs for unusual execution activity around frontmatter requirements handling.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-78: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-0765 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.8CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

8.8High
CVSS 3.0 vector shape for CVE-2026-0765Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Open WebUIOpen WebUI0.6.32unknown
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-78 · source CWE mapping

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.