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VULNERABILITIES

CVE-2026-63639 Details

Description

Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's RESTORE command accepts a malformed RDB stream payload that assigns one Pending Entry List NACK to multiple consumers during stream consumer-group deserialization, causing a use-after-free when one consumer is deleted while another still references the shared NACK and potentially allowing remote code execution. This issue is fixed in versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/valkey-io/valkey/commit/06bc7768fe609f2054e69ccedefe7628f5675da9 [email protected]
https://github.com/valkey-io/valkey/commit/509cb3c74e8cbc9c0498ebe8b6c93dcd605e7271 [email protected]
https://github.com/valkey-io/valkey/commit/98465eaffe3f95524a5046318bfbc4bdb9798291 [email protected]
https://github.com/valkey-io/valkey/commit/e95911d4d65be8789fa3705f44d7ed1e65378445 [email protected]
https://github.com/valkey-io/valkey/commit/f8d2027e8d4df790ac04974bf606408c8ea62778 [email protected]

see all 12 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After Free[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-63639
NVD Published Date:
Aug 18, 2026
NVD Last Modified:
Sep 18, 2026
Source:
[email protected]
CVE-2026-63639 Details - Not Deferred