High severity8.8NVD Advisory· Published Aug 18, 2026
CVE-2026-63639
CVE-2026-63639
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.
Affected products
3- osv-coords2 versionspkg:rpm/opensuse/valkey&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/valkey&distro=openSUSE%20Leap%2016.0
< 9.1.1-1.1+ 1 more
- (no CPE)range: < 9.1.1-1.1
- (no CPE)range: < 8.0.10-160000.1.1
Patches
Vulnerability mechanics
References
12- github.com/valkey-io/valkey/commit/06bc7768fe609f2054e69ccedefe7628f5675da9nvd
- github.com/valkey-io/valkey/commit/509cb3c74e8cbc9c0498ebe8b6c93dcd605e7271nvd
- github.com/valkey-io/valkey/commit/98465eaffe3f95524a5046318bfbc4bdb9798291nvd
- github.com/valkey-io/valkey/commit/e95911d4d65be8789fa3705f44d7ed1e65378445nvd
- github.com/valkey-io/valkey/commit/f8d2027e8d4df790ac04974bf606408c8ea62778nvd
- github.com/valkey-io/valkey/pull/4073nvd
- github.com/valkey-io/valkey/releases/tag/7.2.14nvd
- github.com/valkey-io/valkey/releases/tag/8.0.10nvd
- github.com/valkey-io/valkey/releases/tag/8.1.9nvd
- github.com/valkey-io/valkey/releases/tag/9.0.5nvd
- github.com/valkey-io/valkey/releases/tag/9.1.1nvd
- github.com/valkey-io/valkey/security/advisories/GHSA-mvcj-73cw-22m4nvd
News mentions
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