CVE-2026-31877: Frappe Sanitize Fields Single Paren Blacklist Bypass
SQL field sanitizer extracts only the token after the first '(' and checks it against a keyword/function blacklist. Nested parentheses (a subquery placed in a later argument, or wrapped inside an allowed SQL function) bypass this check and enable SQL injection (CVE-2026-31877). Iterate over every '(' in the field expression and validate each inner token, e.g
Pythongreprules fetch cve-2026-31877-frappe-sanitize-fields-single-paren-blacklist-bypass --engine opengrepDescription
SQL field sanitizer extracts only the token after the first '(' and checks it against a keyword/function blacklist. Nested parentheses (a subquery placed in a later argument, or wrapped inside an allowed SQL function) bypass this check and enable SQL injection (CVE-2026-31877). Iterate over every '(' in the field expression and validate each inner token, e.g
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