Heap-based Buffer Overflow Affecting valkey-io/valkey package, versions [,7.2.13)[8.0.0-rc1,8.0.8)[8.1.0-rc1,8.1.7)[9.0.0-rc1,9.0.4)
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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- published6 May 2026
- disclosed5 May 2026
- creditEmil Lerner, Joseph Surin
Introduced: 5 May 2026
CVE-2026-25243 (opens in a new tab)How to fix?
Upgrade valkey-io/valkey to version 7.2.13, 8.0.8, 8.1.7, 9.0.4 or higher.
Overview
Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the RESTORE command due to improper validation of serialized values. An attacker can achieve arbitrary code execution by supplying a crafted serialized payload when authenticated and permitted to execute RESTORE.
Workaround
This vulnerability can be mitigated by restricting access to the RESTORE command using ACL rules.