CVE-2021-23166Network attack vector

Server file read and write via inherited lobject

Published Apr 25, 2023 · Updated Feb 3, 2025

Sandbox escape in Odoo Community and Enterprise 15.0 and earlier allows remote authenticated administrators to read and write server files. The PsycoConnection wrapper inherits psycopg2's lobject method, exposing PostgreSQL large-object operations instead of blocking them. Database administrator access is required; untrusted tenant administrators can reach protected configuration secrets on shared hosts.

CVSS severity8.7
High
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sandbox escape in Odoo Community and Enterprise 15.0 and earlier allows remote authenticated administrators to read and write server files. The PsycoConnection wrapper inherits psycopg2's lobject method, exposing PostgreSQL large-object operations instead of blocking them. Database administrator access is required; untrusted tenant administrators can reach protected configuration secrets on shared hosts.

The record

CVE
CVE-2021-23166
Published
Apr 25, 2023
Updated
Feb 3, 2025
Vendor
Odoo
Product
Odoo Community
Classifications
CWE-276, CWE-267, T1565.001, T1005
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=15.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Odoo · Odoo Communityversion=0 <=15.0
Odoo · Odoo Enterpriseversion=0 <=15.0

Published CVSS scores

8.7NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
8.7OdooCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
CWE-267Privilege Defined With Unsafe Actions
T1565.001Stored Data Manipulation
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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