CVE-2026-23479
highpriority · attend · 46EPSS 0.017 · 76 %ileexploit · PoCDEEURUUSEPSS · scored 2026-10-26
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (4)
Public proof-of-concept and weaponised exploit code.
affected products (38)
Products and version ranges known to be affected.
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionsall versionscert_bundDEcpe:/o:redhat:enterprise_linux:9.4_update_services_for_sap_solutions
advisories (4)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1370Redis: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem ProgrammcodeDeutsch2026-05-05csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Redis ausnutzen, um beliebigen Programmcode.
- BIT-keydb-2026-23479redis-server use-after-free in unblock client flow may allow remote code execution2026-05-07vendor · osvUS
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.
- BIT-redis-2026-23479redis-server use-after-free in unblock client flow may allow remote code execution2026-05-07vendor · osvUS
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.
- BIT-valkey-2026-23479redis-server use-after-free in unblock client flow may allow remote code execution2026-05-07vendor · osvUS
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.
also known as (7)
Other names and identifiers for this entity.
- CNNVD-202605-618cnnvd
- EUVD-2026-27396enisa_euvd
- BDU:2026-06444fstec_bdu
- BIT-keydb-2026-23479osv
- BIT-redis-2026-23479osv
- BIT-valkey-2026-23479osv
- GHSA-93m2-935m-8rj3osv
sources
Which sources assert this record, and when.
references (16)
External citations — patches, advisories, analysis.
- https://github.com/redis/redis/releasesPatchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-23479cnnvd
- https://github.com/redis/redis/releases/tag/8.6.3enisa_euvd
- https://github.com/redis/redis/security/advisories/GHSA-93m2-935m-8rj3enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:14316nvd
- https://access.redhat.com/errata/RHSA-2026:25216nvd
- https://access.redhat.com/errata/RHSA-2026:25219nvd
- https://access.redhat.com/errata/RHSA-2026:25925nvd
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