CVE-2026-61749: InvenTree: Administrative staff users can trigger Arbitrary File Read leading to Credential Disclosure
InvenTree is an Open Source Inventory Management System. Prior to 1.4.0, privileged staff users who can author report or label templates can cause WeasyPrint report rendering to retrieve attacker-selected resources through the HTTP and HTTPS URL schemes or the local file URI scheme. The HTML(string=html).writepdf() path does not provide a restricted urlfetcher, and attachtomodel=True stores the original generated PDF before later processing, allowing fetched local files or internal HTTP response bodies to be recovered from embedded attachments. This enables full-read server-side request forgery, arbitrary local file disclosure including application credentials, and possible compromise of a superuser account. This issue is fixed in version 1.4.0.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
InvenTreeto a version that resolves this vulnerability.Fixed in 1.4.0
Event History
Frequently Asked Questions
Which users can exploit this issue?
Exploitation requires a privileged staff account with permission to author report or label templates. The attack is network-reachable and does not require user interaction once the attacker has the necessary privileges.
What data could be exposed?
An attacker can retrieve resources from internal HTTP/HTTPS endpoints and read local files through file URIs. Retrieved content can be recovered from embedded attachments in generated PDFs, potentially disclosing application credentials and enabling compromise of a superuser account.
Which versions are affected and what version fixes it?
InvenTree versions prior to 1.4.0 are affected. The issue is fixed in version 1.4.0.