CVE-2026-53769
Dashboard / Vulnerabilities / CVE-2026-53769
Summary: Avo: Direct attachment upload endpoint lacks upload authorization and bypasses field-level upload policy
Details: Avo is a framework to create admin panels for Ruby on Rails apps. From version 2.28.0 to before version 3.32.0, Avo's direct attachment upload endpoint lacks server-side upload authorization and bypasses the documented field-level upload policy methods such as upload_{FIELD_ID}?. An authenticated Avo user who can reach the Avo attachment upload endpoint can replace or add attachment content, including binary content, filename, and content-type metadata, on a resolved record even when both update? and upload_<field>? policies deny the operation. This primarily affects multi-role Avo Pro/Advanced-style deployments where non-administrator or restricted operator users can reach Avo and per-record or per-field operations are expected to be enforced by policies. This issue has been patched in version 3.32.0.
References: https://github.com/avo-hq/avo/releases/tag/v3.32.0, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53769.json, https://github.com/avo-hq/avo/security/advisories/GHSA-pqpw-cvm4-8mv9, https://nvd.nist.gov/vuln/detail/CVE-2026-53769, https://github.com/avo-hq/avo/commit/de12070dbac0cb6a7e2bea357f9697f99e92554c, https://github.com/avo-hq/avo/pull/4520
Affected packages
Package
Name:
Purl:
Affected ranges
Type: GIT
Events:
