Patch Forecast
Yellow warning
Plan into this sprint.

CVE-2026-120987

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

Risk score
50/100
CVSS
7.5 v3.1
Exploit chance (30 days)
0.1%
Published
3 Nov 2026

Open in the live forecast Today's forecast

What to know

What it is
Whale Browser before 5.39.412.57 allows an attacker to bypass the iframe sandbox in a dual-tab environment.
Affected
See advisory
Fix
Upgrade the product to 5.39.412.57 or later.
Exploitation
No known exploitation

Why it is Yellow

  • CVSS 7.5 high
  • Remotely exploitable without logging in

References

Original description

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

Last activity 3 Nov 2026. Patch Forecast updates every hour.