Valkey: UAF in stream deserialization may lead to remote code execution (valkey-io valkey)

CVE-2026-63639
HIGH 8.8

At a glance

Source
NVD
EPSS
EPSS 0.89 % · percentile 59 ()
State
PUBLISHED
Published
Updated
Assigner
GitHub_M
NVD status
Awaiting Analysis

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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HGitHub_M
CVSS 3.1HIGH 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · security-advisories@github.com (Secondary)

European references

Affected products

ProductVersions
valkey-io · valkeyaffected < 7.2.14 ; affected >= 8.0.0, < 8.0.10 ; affected >= 8.1.0, < 8.1.9 ; affected >= 9.0.0, < 9.0.5 ; affected >= 9.1.0, < 9.1.1

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD