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Date: Tue, 12 Dec 2023 20:09:47 +0000
From: Nick Vatamaniuc <>
Subject: CVE-2023-45725: Apache CouchDB, IBM Cloudant: Privilege Escalation
 Using _design Documents 

Severity: moderate

Affected versions:

- Apache CouchDB through 3.3.2
- IBM Cloudant before 8413


Design document functions which receive a user http request object may expose authorization or session cookie headers of the user who accesses the document.

These design document functions are:
  *    list
  *    show
  *    rewrite
  *    update

An attacker can leak the session component using an HTML-like output, insert the session as an external resource (such as an image), or store the credential in a _local document with an "update" function.

For the attack to succeed the attacker has to be able to insert the design documents into the database, then manipulate a user to access a function from that design document.

Workaround: Avoid using design documents from untrusted sources which may attempt to access or manipulate request object's headers


Natan Nehorai from the JFrog Vulnerability Research Team (finder)
Or Peles from the JFrog Vulnerability Research Team (reporter)
Richard Ellis from IBM/Cloudant Team (finder)
Mike Rhodes from IBM/Cloudant Team (finder)


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