CVE-2026-53769
avo: Avo: Unauthorized attachment modification via authorization bypass
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 5, 2026
Updated · September 7, 2026
Description
A flaw was found in Avo. An authenticated user could bypass server-side upload authorization and field-level upload policies. This allows them to replace or add attachment content, including binary content, filename, and content-type metadata, on a record. This could lead to unauthorized modification of data, particularly in multi-role deployments where specific per-record or per-field operations are expected to be enforced by policies.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE-639 · Authorization Bypass Through User-Controlled Key