CVE-2026-23479

Name
CVE-2026-23479
Description
Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
security-advisories@github.com https://github.com/redis/redis/releases/tag/8.6.3
security-advisories@github.com https://github.com/redis/redis/security/advisories/GHSA-93m2-935m-8rj3
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:25216
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:25219
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:25925
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:26306
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:26540
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/security/cve/CVE-2026-23479
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://bugzilla.redhat.com/show_bug.cgi?id=2466780
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23479.json
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:14316
0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://access.redhat.com/errata/RHSA-2026:7662

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* redis >= 7.2.0 < 8.6.3

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
valkey edge-main 9.0.4-r0 Jakub Jirutka <jakub@jirutka.cz> fixed
valkey 3.24-main 9.0.4-r0 Jakub Jirutka <jakub@jirutka.cz> fixed
valkey 3.23-main 9.0.4-r0 Jakub Jirutka <jakub@jirutka.cz> fixed
valkey 3.22-main 8.1.7-r0 Jakub Jirutka <jakub@jirutka.cz> fixed
valkey 3.21-main 7.2.13-r0 Jakub Jirutka <jakub@jirutka.cz> fixed
valkey 3.20-main 7.2.13-r0 Jakub Jirutka <jakub@jirutka.cz> fixed
redis edge-main 7.2.4-r1 TBK <alpine@jjtc.eu> possibly vulnerable
redis edge-main 7.2.4-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis edge-main 7.2.3-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis edge-main 7.2.2-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis edge-main 7.2.1-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis edge-main 7.2.0-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis edge-community 8.6.2-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis edge-community 8.6.1-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis edge-community 8.6.0-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis edge-community 8.4.1-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis edge-community 8.4.0-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis edge-community 8.2.3-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis edge-community 8.2.2-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis edge-community 8.2.1-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis edge-community 8.2.0-r1 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis edge-community 8.2.0-r0 fossdd <fossdd@pwned.life> possibly vulnerable
redis edge-community 8.0.3-r0 fossdd <fossdd@pwned.life> possibly vulnerable
redis edge-community 8.0.2-r0 fossdd <fossdd@pwned.life> possibly vulnerable
redis edge-community 8.0.1-r0 fossdd <fossdd@pwned.life> possibly vulnerable
redis edge-community 8.0.0-r0 fossdd <fossdd@pwned.life> possibly vulnerable
redis edge-community 7.2.7-r0 fossdd <fossdd@pwned.life> possibly vulnerable
redis edge-community 7.2.5-r2 fossdd <fossdd@pwned.life> possibly vulnerable
redis edge-community 7.2.5-r1 TBK <alpine@jjtc.eu> possibly vulnerable
redis edge-community 7.2.5-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis edge-community 7.2.4-r1 TBK <alpine@jjtc.eu> possibly vulnerable
redis edge-community 7.2.4-r0 None possibly vulnerable
redis edge-community 7.2.2-r0 None possibly vulnerable
redis edge-community 7.2.1-r0 None possibly vulnerable
redis 3.23-community 8.4.2-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis 3.23-community 8.4.1-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis 3.23-community 8.4.0-r0 Achill Gilgenast <achill@achill.org> possibly vulnerable
redis 3.19-main 7.2.9-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis 3.19-main 7.2.8-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis 3.19-main 7.2.7-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis 3.19-main 7.2.4-r1 TBK <alpine@jjtc.eu> possibly vulnerable
redis 3.19-main 7.2.4-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis 3.19-main 7.2.3-r0 TBK <alpine@jjtc.eu> possibly vulnerable
redis 3.19-main 7.2.2-r0 None possibly vulnerable
redis 3.19-main 7.2.1-r0 None possibly vulnerable