# CVE-2026-67449: Portabase: Unauthenticated path traversal in TUS webhook overwrites AES-256-GCM master key

Status: published. Published: 2026-11-11. Updated: 2026-11-11.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Portabase / portabase: < 1.21.2 (affected). Source: CNA: GitHub_M

## Severity and prioritization

- CVSS 3.1: 9.8 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: CNA: GitHub_M

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-22, CWE-306

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/Portabase/portabase/security/advisories/GHSA-7697-vf3j-253j (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/Portabase/portabase/pull/355 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/Portabase/portabase/commit/8dcb406790728fbdbf758ec88bf000af79498fc1 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/Portabase/portabase/releases/tag/1.21.2 (CNA: GitHub_M; x_refsource_MISC)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-67449; retrieved 2026-11-11; source updated 2026-11-11

Revision: b94f333f073e782cd200954abc2e4a760a3fb738710ec94ca02fbb01bc5cccb9

Canonical: https://y2.dev/cve/CVE-2026-67449

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