Not rated
CVE-2019-0201 An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta
Description
An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. ZooKeeper’s getACL() command doesn’t check any permission when retrieves the ACLs of the requested node and returns all information contained in the ACL Id field as plaintext string. DigestAuthenticationProvider overloads the Id field with the hash value that is used for user authentication. As a consequence, if Digest Authentication is in use, the unsalted hash value will be disclosed by getACL() request for unauthenticated or unprivileged users.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache ZooKeeper | Versions not published |
Other CVEs of Apache ZooKeeper
The 19 CVEs of Apache ZooKeeper →
CVE-2026-100302
Apache ZooKeeper: Denial of service through unbounded memory allocation in multiRead request handling
7.1
High
CVE-2026-115448
Apache ZooKeeper: Unbounded recursion in snapshot serialization allows a client to render the server unrecoverable
8.7
High
CVE-2026-100300
Apache ZooKeeper: Unauthenticated persistent denial of service via unvalidated quota-node data and paths crashing the transaction-apply thread
8.7
High
CVE-2026-100252
Apache ZooKeeper: SASL authorization bypass on the client port through a client-supplied authorization ID
8.6
High