PT-2026-98893 · Vmware · Rabbitmq

CVE-2026-67236

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Published

2026-09-25

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Updated

2026-09-28

CVSS v4.0

8.2

High

VectorAV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions RabbitMQ versions 4.2.0 through 4.2.7 RabbitMQ versions 4.3.0 through 4.3.1
Description A successful request to the 'POST /login' endpoint causes the is authorized/2 function to set an authentication cookie containing base64-encoded username and password credentials. This cookie lacks HttpOnly, Secure, SameSite, and expiration protections. Since base64 is an encoding method and not 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 plain-text login credentials. Additionally, older browsers that treat a missing SameSite attribute as None may send the cookie cross-site.
Recommendations Update to version 4.2.8. Update to version 4.3.2.

Exploit

Fix

Cleartext Storage of Sensitive Information

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Weakness Enumeration

Related Identifiers

CVE-2026-67236
GHSA-88VH-GX85-P36M

Affected Products

Rabbitmq