CVE-2026-63639
published 2026-08-18CVE-2026-63639: 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…
PriorityP263high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
1.17%
67.2th percentile
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
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ubuntu | valkey | — | — |
| valkey-io | valkey | < 7.2.14 | 7.2.14 |
| valkey-io | valkey | — | — |
| valkey-io | valkey | — | — |
| valkey-io | valkey | — | — |
| valkey-io | valkey | — | — |
| valkey-io | valkey | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_redhat8.8HIGH
vendor_ubuntu7.5HIGH
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Ubuntu
Valkey vulnerabilities
vendor_ubuntu·2026-09-16·CVSS 7.5
CVE-2026-85522 [HIGH] Valkey vulnerabilities
Title: Valkey vulnerabilities
Summary: Several security issues were fixed in Valkey.
Madelyn Olson discovered that Valkey incorrectly handled TLS connections
under certain conditions. A remote attacker could possibly use this issue to
cause Valkey to crash, resulting in a denial of service, or execute arbitrary
code. (CVE-2026-56684)
It was discovered that Valkey incorrectly handled certain stream RDB payloads
when executing the RESTORE command. An authenticated remote attacker could
possibly use this issue to cause Valkey to crash, resulting in a denial
of service, or execute arbitrary code. (CVE-2026-63639)
It was discovered that Valkey incorrectly handled cluster slot migration
operations. A remote attacker could possibly use this issue to cause Valkey
to crash, resulting in a denia
Red Hat
valkey: Valkey: Remote code execution via use-after-free in stream deserialization
vendor_redhat·2026-08-18·CVSS 8.8
CVE-2026-63639 [HIGH] CWE-825 valkey: Valkey: Remote code execution via use-after-free in stream deserialization
valkey: Valkey: Remote code execution via use-after-free in stream deserialization
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.
A flaw was found in Valkey, a distributed key-value database. A remote attacker could exploit a use-after-free vulnerability in the RESTORE command. This occurs when a malformed data stream is processed during stream deseriali
No detection rules found.
No public exploits indexed.
https://github.com/valkey-io/valkey/commit/06bc7768fe609f2054e69ccedefe7628f5675da9https://github.com/valkey-io/valkey/commit/509cb3c74e8cbc9c0498ebe8b6c93dcd605e7271https://github.com/valkey-io/valkey/commit/98465eaffe3f95524a5046318bfbc4bdb9798291https://github.com/valkey-io/valkey/commit/e95911d4d65be8789fa3705f44d7ed1e65378445https://github.com/valkey-io/valkey/commit/f8d2027e8d4df790ac04974bf606408c8ea62778https://github.com/valkey-io/valkey/pull/4073https://github.com/valkey-io/valkey/releases/tag/7.2.14https://github.com/valkey-io/valkey/releases/tag/8.0.10https://github.com/valkey-io/valkey/releases/tag/8.1.9https://github.com/valkey-io/valkey/releases/tag/9.0.5https://github.com/valkey-io/valkey/releases/tag/9.1.1https://github.com/valkey-io/valkey/security/advisories/GHSA-mvcj-73cw-22m4
2026-08-18
Published