CVE-2026-81934

Redis TLS pending-data list use-after-free

HIGH
7.1
CVSS Score
Published: August 27, 2026 at 07:40 PM UTC
Updated: August 31, 2026 at 08:36 PM UTC
2 products affected across 1 vendorRedisRedis Software

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Severity
HIGH7.1
Exploit prediction
EPSS 0.5%
SSVC
PoC

Description

Redis contains a use-after-free vulnerability in the 'tlsProcessPendingData()' function, which handles the TLS pending-data list if Redis is configured with TLS support. A remote, unauthenticated attacker may be able to execute arbitrary commands with the privileges of the Redis server. Fixed in Redis 8.2.9, 8.4.6, 8.6.6, 8.8.2, and 8.10.1.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 6.2.24v < 7.2.16v < 7.4.11v < 8.10.1v < 8.2.9v < 8.4.6v < 8.6.6v < 8.8.2
Vendor states this is fixed in 6.2.24 (unaffected)
Vendor states this is fixed in 7.2.16 (unaffected)
Vendor states this is fixed in 7.4.11 (unaffected)
Vendor states this is fixed in 8.10.1 (unaffected)
Vendor states this is fixed in 8.2.9 (unaffected)
Vendor states this is fixed in 8.4.6 (unaffected)
Vendor states this is fixed in 8.6.6 (unaffected)
Vendor states this is fixed in 8.8.2 (unaffected)
v < 7.22.2-179v < 7.8.6-303v < 8.0.20-96v < 8.2.0-46
Vendor states this is fixed in 7.22.2-179 (unaffected)
Vendor states this is fixed in 7.8.6-303 (unaffected)
Vendor states this is fixed in 8.0.20-96 (unaffected)
Vendor states this is fixed in 8.2.0-46 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHcisa-cg
Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-416

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