CVE-2026-56684
published 2026-08-18CVE-2026-56684: 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 tlsProcessPendingData function iterates pending_list…
PriorityP355high7.5CVSS 3.1
AVNACHPRLUINSUCHIHAH
EPSS
0.89%
58.9th 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 tlsProcessPendingData function iterates pending_list while an authenticated client can trigger CLIENT KILL, causing connTLSClose to delete the iterator's cached next node and producing a use-after-free that can crash the server or potentially allow remote code execution when TLS is enabled. 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
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_redhat7.5HIGH
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 TLS pending-data processing use-after-free
vendor_redhat·2026-08-18·CVSS 7.5
CVE-2026-56684 [HIGH] CWE-825 valkey: Valkey: Remote code execution via TLS pending-data processing use-after-free
valkey: Valkey: Remote code execution via TLS pending-data processing use-after-free
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 tlsProcessPendingData function iterates pending_list while an authenticated client can trigger CLIENT KILL, causing connTLSClose to delete the iterator's cached next node and producing a use-after-free that can crash the server or potentially allow remote code execution when TLS is enabled. 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. An authenticated client can trigger a `CLIENT KILL` command while the `tlsProcessPendingData` function iterates a pending list. This action causes `connTLSClose` to delete the iterator's cached next node, leading to a
No detection rules found.
No public exploits indexed.
https://github.com/valkey-io/valkey/commit/7cd5bcb7575d750ec2de618db80da58680a10fe3https://github.com/valkey-io/valkey/pull/4234https://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-53mc-f3m3-99vh
2026-08-18
Published