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CVE-2026-23479

Medium

Elevated severity or exploit probability.

CVSS base
8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
1.5%
73.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-416
Published 2026-05-05 · modified 2026-07-25

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.

Affected

redis

References

Official: NVD · CVE.org