Auth bypass in Papra-Hq Papra

CVE-2026-48052

Papra is a minimalistic document management and archiving platform. Prior to version 26.5.0, an authenticated user who is a member of any organization can delete or rename tags belonging to a different organization, given the target tag's ID. The route handler verifies the caller's membership of the ":organizationId" in the URL, but the repository write filters on tag.id alone, so the URL-level org scope never reaches the database. This issue has been patched in version 26.5.0.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (11.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-48052?
CVE-2026-48052 is a medium-severity vulnerability in Papra-Hq Papra, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.4/10. Published 2026-07-27.
How severe is CVE-2026-48052?
Medium severity. CVSS v3 base score is 5.4 out of 10.