CVE-2026-27315: apache software foundation apache cassandra

Vulnerability summary

CVE-2026-27315 is a medium (CVSS 5.5) vulnerability in apache software foundation apache cassandra. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.5% of scored vulnerabilities.

Timeline

1. 07-04-2026
   PublishedVulnerability first disclosed.
2. 09-04-2026
   Last modifiedVulnerability information updated.

Description

Sensitive Information Leak in cqlsh in Apache Cassandra 4.0 allows access to sensitive information, like passwords, from previously executed cqlsh command via  ~/.cassandra/cqlsh_history local file access. Users are recommended to upgrade to version 4.0.20, which fixes this issue. -- Description: Cassandra's command-line tool, cqlsh, provides a command history feature that allows users to recall previously executed commands using the up/down arrow keys. These history records are saved in the ~/.cassandra/cqlsh_history file in the user's home directory. However, cqlsh does not redact sensitive information when saving command history. This means that if a user executes operations involving passwords (such as logging in or creating users) within cqlsh, these passwords are permanently stored in cleartext in the history file on the disk.

• CWE-532Insertion of Sensitive Information into Log FileThe product writes sensitive information to a log file.