CVE-2026-23479: Redis | defend.network

What is CVE-2026-23479?

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.

CVSS8.8 NVD 3.1

SeverityHIGH

ExploitationNo exploitation reported

EPSS1% · P67

Triage statusNo Known Exploit

ActionPatch this week

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD published2026-05-05

NVD last modified2026-07-16

Timeline

2026-05-05Published to the U.S. National Vulnerability Database (NVD)
2026-06-04First covered in a defend.network daily briefing
2026-07-16NVD record last updated

Affected product

Redis

Remediation Steps

Apply the vendor security update for Redis as a priority.
Restrict network exposure of the affected service to trusted sources until patched.
Review logs and detections for indicators of exploitation.
Confirm fixed versions against the official vendor advisory before deploying.

References

Referenced in our briefings & reports

Vulnerability Priority Report – Week 1 of June 2026 (June 1 – 7)
Google Gemini prompt injection, Microsoft 365 token theft, Redis RCE patched (2026-06-04)

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🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.