CVE-2026-8723: Qs Stringify Comma MaybeMap Unguarded Encoder
Passing the raw `encoder` callback directly to `utils.maybeMap` over an array means `null`/`undefined` entries reach `utils.encode`, which dereferences `str.length` and throws `TypeError: Cannot read properties of null (reading 'length')`. Under `arrayFormat: 'comma'` + `encodeValuesOnly: true`, this aborts stringification before `skipNulls` or `strictNullHa
JSgreprules fetch cve-2026-8723-qs-stringify-comma-maybemap-unguarded-encoder --engine opengrepDescription
Passing the raw `encoder` callback directly to `utils.maybeMap` over an array means `null`/`undefined` entries reach `utils.encode`, which dereferences `str.length` and throws `TypeError: Cannot read properties of null (reading 'length')`. Under `arrayFormat: 'comma'` + `encodeValuesOnly: true`, this aborts stringification before `skipNulls` or `strictNullHa
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