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Review reviewHigh

CVE-2025-67733

valkey-io valkey, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support

Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious user can use scripting commands to inject arbitrary information into the response stream for the given client, potentially corrupting or returning tampered data to other users on the same connection. The error handling code for lua scripts does not properly handle null characters. Versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12 fix the issue.

CVSS
7.1
EPSS
0.59%
44.7% percentile
CISA KEV
Not listed
Published
2026.02.24
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.59%
Technical severityCVSS 7.1

Vulnerability overview

Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious user can use scripting commands to inject arbitrary information into the response stream for the given client, potentially corrupting or returning tampered data to other users on the same connection. The error handling code for lua scripts does not properly handle null characters. Versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12 fix the issue.

Affected product and versions

Product
valkey-io valkey, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support
Affected versions
>= < 7.2.12, >= >= 8.0.0, < 8.0.7, >= >= 8.1.0, < 8.1.6, >= >= 9.0.0, < 9.0.2, < 7.2.12, >= 8.0.0 < 8.0.7, >= 8.1.0 < 8.1.6, >= 9.0.0 < 9.0.2
Fixed versions
7.2.12, 8.0.7, 8.1.6, 9.0.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that valkey-io valkey, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CWE
CWE-170, CWE-74