CVE catalog

CVE-2026-23479

Severity: High · CVSS 7.7
Published: Apr 11, 2026, 8:14:52 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.66% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	redis	sid	`5:8.0.6-3`	fixed
Debian	redis	forky	`5:8.0.6-3`	fixed
Debian	redis	trixie	`5:8.0.2-3+deb13u2`	vulnerable
Debian	redis	trixie-security	`5:8.0.2-3+deb13u3`	fixed
Debian	redis	bookworm	`5:7.0.15-1~deb12u7`	not affected
Debian	redis	bookworm-security	`5:7.0.15-1~deb12u10`	not affected
Cpe	redis	Not reported	`8.6.3`	fixed
Alpine	valkey	3.20	`7.2.13-r0`	fixed
Alpine	valkey	3.21	`7.2.13-r0`	fixed
Alpine	valkey	3.22	`8.1.7-r0`	fixed
Alpine	valkey	3.23	`9.0.4-r0`	fixed
Alpine	valkey	3.24	`9.0.4-r0`	fixed
Opensuse	redis	leap 16.0	`8.10.1-bp160.1.1`	fixed
Opensuse	redis-modules	leap 16.0	`8.10.1-bp160.1.1`	fixed
Opensuse	valkey	tumbleweed	`9.0.4-1.1`	fixed
Opensuse	redis	tumbleweed	`8.6.3-1.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	redis	source	sid	`5:8.0.6-3`	not yet assigned	Not reported	[1147421]
Debian	redis	source	forky	`5:8.0.6-3`	not yet assigned	Not reported	[1147421]
Debian	redis	source	trixie	`5:8.0.2-3+deb13u3`	not yet assigned	Not reported	[1147421]
Debian	redis	source	bookworm	`Not affected`	unimportant	Not reported	[1147421]
Cpe	redis	cpe	Not reported	`8.6.3`	Not reported	Not reported	Not reported
Alpine	valkey	apk	3.20	`7.2.13-r0`	Not reported	ALPINE-CVE-2026-23479	Not reported
Alpine	valkey	apk	3.21	`7.2.13-r0`	Not reported	ALPINE-CVE-2026-23479	Not reported
Alpine	valkey	apk	3.22	`8.1.7-r0`	Not reported	ALPINE-CVE-2026-23479	Not reported
Alpine	valkey	apk	3.23	`9.0.4-r0`	Not reported	ALPINE-CVE-2026-23479	Not reported
Alpine	valkey	apk	3.24	`9.0.4-r0`	Not reported	ALPINE-CVE-2026-23479	Not reported
Opensuse	redis	rpm	leap 16.0	`8.10.1-bp160.1.1`	Not reported	OPENSUSE-SU-2026:21612-1	Not reported
Opensuse	redis-modules	rpm	leap 16.0	`8.10.1-bp160.1.1`	Not reported	OPENSUSE-SU-2026:21612-1	Not reported
Opensuse	valkey	rpm	tumbleweed	`9.0.4-1.1`	Not reported	OPENSUSE-SU-2026:10719-1	Not reported
Opensuse	redis	rpm	tumbleweed	`8.6.3-1.1`	Not reported	OPENSUSE-SU-2026:10711-1	Not reported

[Debian bug #1147421]

OpenFactory catalog packages

[Debian 13 (Trixie)]

[redis]Affected
Details (5)
- 5:8.0.2-3+deb13u2 · all · trixie
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · all · trixie
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · all · trixie-security · Historical version
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · all · trixie-security
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u3 · all · trixie-security
  Fixed · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
[redis-sentinel]Affected
Source package: [redis]
Details (5)
- 5:8.0.2-3+deb13u2 · amd64 · trixie
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · arm64 · trixie
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · amd64 · trixie-security · Historical version
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · arm64 · trixie-security
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u3 · amd64 · trixie-security
  Fixed · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
[redis-server]Affected
Source package: [redis]
Details (5)
- 5:8.0.2-3+deb13u2 · amd64 · trixie
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · arm64 · trixie
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · amd64 · trixie-security · Historical version
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · arm64 · trixie-security
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u3 · amd64 · trixie-security
  Fixed · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
[redis-tools]Affected
Source package: [redis]
Details (5)
- 5:8.0.2-3+deb13u2 · amd64 · trixie
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · arm64 · trixie
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · amd64 · trixie-security · Historical version
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u2 · arm64 · trixie-security
  Affected · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
- 5:8.0.2-3+deb13u3 · amd64 · trixie-security
  Fixed · Fixed: 5:8.0.2-3+deb13u3
  nvd · redis · debian · 13
[valkey-sentinel]Affected
Source package: [valkey]
Details (5)
- 8.1.1+dfsg1-3+deb13u2 · amd64 · trixie
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u2 · arm64 · trixie
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u2 · amd64 · trixie-security · Historical version
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u2 · arm64 · trixie-security
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u3 · amd64 · trixie-security
  Fixed · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
[valkey-server]Affected
Source package: [valkey]
Details (5)
- 8.1.1+dfsg1-3+deb13u2 · amd64 · trixie
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u2 · arm64 · trixie
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u2 · amd64 · trixie-security · Historical version
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u2 · arm64 · trixie-security
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u3 · amd64 · trixie-security
  Fixed · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
[valkey-tools]Affected
Source package: [valkey]
Details (5)
- 8.1.1+dfsg1-3+deb13u2 · amd64 · trixie
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u2 · arm64 · trixie
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u2 · amd64 · trixie-security · Historical version
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u2 · arm64 · trixie-security
  Affected · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13
- 8.1.1+dfsg1-3+deb13u3 · amd64 · trixie-security
  Fixed · Fixed: 8.1.1+dfsg1-3+deb13u3
  nvd · valkey · debian · 13

[openSUSE Tumbleweed]

[valkey-compat-redis]Unknown
Source package: [valkey]
Details (1)
- 9.1.1-1.2 · noarch · tumbleweed
  Unknown · Fixed: 9.0.4-1.1
  Version impact unknown
  nvd · valkey · opensuse · tumbleweed
[valkey-devel]Unknown
Source package: [valkey]
Details (1)
- 9.1.1-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 9.0.4-1.1
  Version impact unknown
  nvd · valkey · opensuse · tumbleweed
[redis]Fixed
Source package: [redis]
Details (1)
- 8.10.1-1.1 · x86_64 · tumbleweed
  Fixed · Fixed: 8.6.3-1.1
  nvd · redis · opensuse · tumbleweed
[valkey]Fixed
Source package: [valkey]
Details (1)
- 9.1.1-1.2 · x86_64 · tumbleweed
  Fixed · Fixed: 9.0.4-1.1
  nvd · valkey · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[redis]Not affected
Details (4)
- 5:7.0.15-1~deb12u7 · all · bookworm
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u7 · all · bookworm
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u9 · all · bookworm-security
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u9 · all · bookworm-security
  Not affected
  nvd · redis · debian · bookworm
[redis-sentinel]Not affected
Source package: [redis]
Details (4)
- 5:7.0.15-1~deb12u7 · amd64 · bookworm
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u7 · arm64 · bookworm
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u9 · amd64 · bookworm-security
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u9 · arm64 · bookworm-security
  Not affected
  nvd · redis · debian · bookworm
[redis-server]Not affected
Source package: [redis]
Details (4)
- 5:7.0.15-1~deb12u7 · amd64 · bookworm
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u7 · arm64 · bookworm
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u9 · amd64 · bookworm-security
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u9 · arm64 · bookworm-security
  Not affected
  nvd · redis · debian · bookworm
[redis-tools]Not affected
Source package: [redis]
Details (4)
- 5:7.0.15-1~deb12u7 · amd64 · bookworm
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u7 · arm64 · bookworm
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u9 · amd64 · bookworm-security
  Not affected
  nvd · redis · debian · bookworm
- 5:7.0.15-1~deb12u9 · arm64 · bookworm-security
  Not affected
  nvd · redis · debian · bookworm

Observed: Oct 27, 2026, 7:59:12 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]