Modification of Assumed-Immutable Data (MAID) Affecting valkey-io/valkey package, versions [,7.2.12)[8.0.0-rc1,8.0.7)[8.1.0-rc1,8.1.6)[9.0.0-rc1,9.0.2)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.59% (44th percentile)

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  • Snyk IDSNYK-UNMANAGED-VALKEYIOVALKEY-15357996
  • published26 Feb 2026
  • disclosed23 Feb 2026
  • creditJYlab

Introduced: 23 Feb 2026

CVE-2025-67733  (opens in a new tab)
CWE-471  (opens in a new tab)

How to fix?

Upgrade valkey-io/valkey to version 7.2.12, 8.0.7, 8.1.6, 9.0.2 or higher.

Overview

Affected versions of this package are vulnerable to Modification of Assumed-Immutable Data (MAID) via improper handling of null characters in the error handling process for Lua scripts. An attacker can corrupt or tamper with data for other clients sharing the same connection by injecting arbitrary data into the response stream through scripting commands.

CVSS Base Scores

version 4.0
version 3.1