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OpenAdvisories
High · 7.5 CVE-2026-56684 EUVD-2026-60822

Valkey: TLS pending-data processing use-after-free may allow remote code execution

Published Aug 18, 2026 · Updated Aug 19, 2026 · Assigned by GitHub_M

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 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 products

VendorProductAffectedFixed
valkey-io valkey < 7.2.14, >= 8.0.0, < 8.0.10, >= 8.1.0, < 8.1.9, >= 9.0.0, < 9.0.5, >= 9.1.0, < 9.1.1 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 valkey 9.1.1-1 —
Debian 13 valkey 8.1.1+dfsg1-3+deb13u3 —
ReleasePackageFixed inAdvisory
Ubuntu 26.04 LTS valkey 9.0.4-0ubuntu0.2 USN-8771-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 24.04 LTS valkey 7.2.13+dfsg1-0ubuntu0.1+esm1 USN-8771-1
ReleasePackageFixed inAdvisory
RHEL 10 valkey +1 8.0.11-1.el10_2 RHSA-2026:64796
RHEL 9 valkey +1 8.0.10-1.el9_8 RHSA-2026:64807
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 10.0 EUS valkey +1 8.0.11-1.el10_0 RHSA-2026:68601
Red Hat Hardened Images 1 valkey +5 9.0.6-0.1.hum1 RHSA-2026:61884

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 valkey +1 8.0.11-1.el10_2 ALSA-2026:64796
AlmaLinux 9 valkey +1 8.0.10-1.el9_8 ALSA-2026:64807

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 valkey 8.0.11-1.el10_2 RLSA-2026:64796
Rocky Linux 9 valkey 8.0.10-1.el9_8 RLSA-2026:64807
ReleasePackageFixed inAdvisory
SLES 15 SP7 valkey 8.0.10-150700.3.20.1 SUSE-SU-2026:3427-1
SLES 15 SP6 valkey 8.0.10-150600.13.28.1 SUSE-SU-2026:3483-1
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP6 valkey 8.0.10-150600.13.28.1 SUSE-SU-2026:3483-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed valkey 9.1.1-1.1 openSUSE-SU-2026:11381-1
openSUSE Leap 16.0 valkey 8.0.10-160000.1.1 openSUSE-SU-2026:21485-1
ReleasePackageFixed inAdvisory
Alpine v3.24 valkey 9.0.7-r0 —
Alpine v3.23 valkey 9.0.7-r0 —
Alpine v3.21 valkey 7.2.15-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 valkey +1 9.0.5-1.amzn2023.0.1 ALAS2023-2026-2011

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 valkey 8.0.10-1 —

Advisories 14

References