Portabase up to 1.21.1 TUS Upload Webhook route.ts path traversal

Summaryinfo

A vulnerability, which was classified as very critical, was found in Portabase up to 1.21.1. Affected is an unknown function of the file app/api/tus/hooks/route.ts of the component TUS Upload Webhook Handler. The manipulation results in path traversal. This vulnerability is identified as CVE-2026-67449. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Portabase up to 1.21.1. Affected is some unknown functionality of the file app/api/tus/hooks/route.ts of the component TUS Upload Webhook Handler. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Portabase is a database backup and restore tool for PostgreSQL, MySQL, MsSQL, MariaDB, Firebird SQL, SQLite, MongoDB, Redis, Files and Docker Volume. Prior to version 1.21.2, a path traversal in the TUS upload webhook handler (app/api/tus/hooks/route.ts) allowed an unauthenticated attacker to overwrite arbitrary files under the private data directory, including /data/private/keys/master_key.bin (the AES-256-GCM master key). This issue has been patched in version 1.21.2.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-67449 since 07/29/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/11/2026). The MITRE ATT&CK project declares the attack technique as T1006.

Upgrading to version 1.21.2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Portabase

Version

• 1.21.0
• 1.21.1

Website

• Product: https://github.com/Portabase/portabase/

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Once again VulDB remains the best source for vulnerability data.

Discussion