Integer Overflow or Wraparound Affecting valkey-io/valkey package, versions [,7.2.11)[8.0.0-rc1,8.0.6)[8.1.0-rc1,8.1.4)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published19 Jan 2026
- disclosed3 Oct 2025
- creditzhutyra
Introduced: 3 Oct 2025
CVE-2025-46819 (opens in a new tab)How to fix?
Upgrade valkey-io/valkey to version 7.2.11, 8.0.6, 8.1.4 or higher.
Overview
Affected versions of this package are vulnerable to Integer Overflow or Wraparound. An attacker can cause the server to read out-of-bounds memory or crash the process by submitting specially crafted scripts via the EVAL or FUNCTION commands.
Note:
This is only exploitable if the attacker has a valid authenticated account with permission to execute Lua scripts.
Workaround
This vulnerability can be mitigated by using ACLs to block script execution by restricting both the EVAL and FUNCTION command families, disabling or limiting Lua scripting, enforcing strong authentication, and restricting network access to trusted hosts.