CVE-2026-59891: Insecure Dict Key Substring Match
Using a substring match to find a dictionary key can lead to insecure matching (e.g., when checking hostnames, URLs or registry names), allowing an attacker to spoof configurations by registering a similar name (like an overlapping substring). Prefer exact matches (`===`) or proper parsing.
JSgreprules fetch cve-2026-59891-insecure-dict-key-substring-match --engine opengrepDescription
Using a substring match to find a dictionary key can lead to insecure matching (e.g., when checking hostnames, URLs or registry names), allowing an attacker to spoof configurations by registering a similar name (like an overlapping substring). Prefer exact matches (`===`) or proper parsing.
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