CVE Catalog

CVE-2026-59805

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.39%

33th percentile - higher than 33% of all known CVEs

Summary

A broken access control vulnerability in Gumroad before version 2026.07.06.2 allows authenticated sellers to manipulate purchase access for other sellers' products. The PurchasesController lacks seller ownership validation, enabling PUT requests to revoke_access and undo_revoke_access actions to unauthorizedly revoke or restore buyer access.

Risk Assessment

The organization faces the risk of unauthorized revocation or restoration of product access for customers, potentially leading to financial losses, trust erosion, and legal issues due to transaction integrity violations.

Recommendation

Immediately upgrade Gumroad to version 2026.07.06.2 or later, which includes a fix for the access control vulnerability. Additionally, implement seller ownership validation mechanisms for all critical actions.

Related vulnerabilities

Original NVD description (English source)

Gumroad before 2026.07.06.2 contains a broken access control vulnerability in the PurchasesController that allows authenticated sellers to manipulate purchase access for other sellers' products by sending PUT requests to the revoke_access and undo_revoke_access actions without seller ownership validation. Attackers can modify the is_access_revoked status on arbitrary purchases to unauthorized revoke or restore buyer access to products they do not own.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS