Naver

CVE-2026-120987: Whale Browser before 5.39.412.57 allows an attacker to bypass the iframe sandbox in a dual-tab environment.

CVE-2026-120987 Nov 3, 2026 Source: Vendor

Whale Browser before 5.39.412.57 allows an attacker to bypass the iframe sandbox in a dual-tab environment.

Source of record The credited names below are quoted verbatim from the vendor's own advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-120987

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Credited

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CVE-2026-120987 BR2026-0000-041515 unclaimed

Credited as Namhyeong Kim (fivehong)