CVE-2026-81934
Received
Received - Intake
Use-After-Free in Redis TLS Processing
Vulnerability report for CVE-2026-81934, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-08-27
Last updated on: 2026-08-27
Assigner: Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government
Description
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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| redis | redis | 8.2.9 |
| redis | redis | 8.4.6 |
| redis | redis | 8.6.6 |
| redis | redis | 8.8.2 |
| redis | redis | 8.10.1 |
| redislabs | redis | 8.2.9 |
| redislabs | redis | 8.4.6 |
| redislabs | redis | 8.6.6 |
| redislabs | redis | 8.8.2 |
| redislabs | redis | 8.10.1 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
