CVE-2026-82287

High

Description

Rybbit before 2.7.0 contains a CORS misconfiguration vulnerability that allows attackers to bypass origin restrictions by reflecting any request origin in Access-Control-Allow-Origin responses while credentials are enabled. Attackers can issue credentialed cross-origin requests from any website to read analytics data, account information, and perform authenticated state-changing operations as the victim user.

SeverityHigh

CVSS8.1

Exploit probability—

Product

Rybbit

PublishedAug 28, 2026

First seenAug 28, 2026

Weakness typeCWE-942CWE-942

How to fix

Update

rybbit-io rybbit2.7.0 or later

Patches

github.com/rybbit-io/rybbit/commit/6f1039bdd3328a84d6700031bc0ce4714020e2f9

Affected products

Product	Affected versions	Fixed in
rybbit-io rybbit	v < 2.7.0	2.7.0

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