CVE-2026-67236 (GCVE-0-2026-67236)
Vulnerability from cvelistv5
Published
2026-09-25 15:59
Modified
2026-09-28 13:41
Severity ?
8.2 (High) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-312 - Cleartext Storage of Sensitive Information
Summary
RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.8 and 4.3.2, a successful POST /login caused is_authorized/2 to set an auth cookie containing base64-encoded username:password credentials without HttpOnly, Secure, SameSite, or expiration protections. Because base64 is encoding rather than encryption, an attacker with same-origin cross-site scripting, an HTTP-readable network position, or local access to the browser cookie store could recover the actual login credentials; older browsers that treated an absent SameSite attribute as None also sent the cookie cross-site. This issue is fixed in versions 4.2.8 and 4.3.2.
References
Impacted products
Vendor Product Version
rabbitmq rabbitmq-server Version: >= 4.2.0, < 4.2.8
Version: >= 4.3.0, < 4.3.2
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