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CVE-2026-63639

Опубликовано: 18 авг. 2026
Источник: redhat
CVSS3: 8.8

Описание

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 deserialization, causing a shared resource to be improperly managed. If successfully exploited, this flaw could lead to remote code execution.

Отчет

This vulnerability is rated as having an Important severity for Red Hat products because an authenticated network client can trigger memory corruption leading to potential arbitrary code execution within the Valkey service context. Although exploitation requires authorization to execute the RESTORE command against the database instance, standard deployments that expose database access to untrusted clients or shared services face significant compromise of confidentiality, integrity, and availability. Deployments that enforce strict access control lists or isolate Valkey instances to trusted internal infrastructure experience reduced exposure.

Меры по смягчению последствий

To mitigate this issue, restrict network access to the Valkey instance to only trusted clients and networks. This limits an attacker's ability to send malformed RDB stream payloads to the RESTORE command. Implement firewall rules to block unauthorized access to the Valkey port.

Дополнительная информация

Статус:

Important
Дефект:
CWE-825
https://bugzilla.redhat.com/show_bug.cgi?id=2517906valkey: Valkey: Remote code execution via use-after-free in stream deserialization

8.8 High

CVSS3

Связанные уязвимости

CVSS3: 8.8
ubuntu
3 месяца назад

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.

CVSS3: 8.8
nvd
3 месяца назад

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.

msrc
3 месяца назад

Valkey: UAF in stream deserialization may lead to remote code execution

CVSS3: 8.8
debian
3 месяца назад

Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8 ...

suse-cvrf
3 месяца назад

Security update for valkey

8.8 High

CVSS3