CVE-2026-27315

Password disclosure via unredacted command history

Published Apr 7, 2026 · Updated Apr 7, 2026

Sensitive information exposure in Apache Cassandra cqlsh 4.0 through 4.0.19 allows local users to read stored passwords from command history. The save_history function passes the entire readline buffer to write_history_file without filtering password-bearing commands. Exposure requires readable access to another user's history after that user entered credentials, and disclosed passwords can enable account access.

CVSS severity5.5
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive information exposure in Apache Cassandra cqlsh 4.0 through 4.0.19 allows local users to read stored passwords from command history. The save_history function passes the entire readline buffer to write_history_file without filtering password-bearing commands. Exposure requires readable access to another user's history after that user entered credentials, and disclosed passwords can enable account access.

The record

CVE
CVE-2026-27315
Published
Apr 7, 2026
Updated
Apr 7, 2026
Vendor
The Apache Software Foundation
Product
Apache Cassandra
Classifications
CWE-532, T1552.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.0 <=4.0.19

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Cassandraversion=4.0 <=4.0.19

Published CVSS scores

6.9GitHubCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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