CVE-2026-81934
7.1
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Redis | Redis | 8.2.9 | unaffected |
| Redis | Redis | 8.4.6 | unaffected |
| Redis | Redis | 8.6.6 | unaffected |
| Redis | Redis | 8.8.2 | unaffected |
| Redis | Redis | 8.10.1 | unaffected |
| Redis | Redis | 7.4.11 | unaffected |
| Redis | Redis | 6.2.24 | unaffected |
| Redis | Redis | 7.2.16 | unaffected |
| Redis | Redis | 0 < 8.8.2 | affected |
| Redis | Redis | 0 < 8.2.9 | affected |
| Redis | Redis | 0 < 8.4.6 | affected |
| Redis | Redis | 0 < 8.6.6 | affected |
| Redis | Redis | 0 < 8.10.1 | affected |
| Redis | Redis | 0 < 7.4.11 | affected |
| Redis | Redis | 0 < 6.2.24 | affected |
| Redis | Redis | 0 < 7.2.16 | affected |
| Redis | Redis Software (Enterprise) | 8.2.0-46 | unaffected |
| Redis | Redis Software (Enterprise) | 8.0.20-96 | unaffected |
| Redis | Redis Software (Enterprise) | 7.22.2-179 | unaffected |
| Redis | Redis Software (Enterprise) | 7.8.6-303 | unaffected |
| Redis | Redis Software (Enterprise) | 0 < 8.2.0-46 | affected |
| Redis | Redis Software (Enterprise) | 0 < 8.0.20-96 | affected |
| Redis | Redis Software (Enterprise) | 0 < 7.22.2-179 | affected |
| Redis | Redis Software (Enterprise) | 0 < 7.8.6-303 | affected |
Weaknesses
- CWE-416: CWE-416 Use After Free
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: total
References
- https://github.com/redis/redis/commit/6d088c335d5c3ec49a6c28486140b498e70b7834
- https://github.com/v12-security/pocs/tree/main/redis/server_ssl
- https://raw.githubusercontent.com/redis/redis/8.2/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.4/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.6/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.8/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.10/00-RELEASENOTES
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-239-01.json
- https://www.cve.org/CVERecord?id=CVE-2026-81934
- https://github.com/redis/redis/releases/tag/6.2.24
- https://github.com/redis/redis/releases/tag/7.2.16
- https://github.com/redis/redis/releases/tag/7.4.11
- https://github.com/redis/redis/releases/tag/8.4.6
- https://github.com/redis/redis/releases/tag/8.2.9
- https://github.com/redis/redis/releases/tag/8.6.6
- https://github.com/redis/redis/releases/tag/8.8.2
- https://github.com/redis/redis/releases/tag/8.10.1
- https://redis.io/docs/latest/operate/rs/release-notes/rs-8-2-releases/rs-8-2-0-46/
- https://redis.io/docs/latest/operate/rs/release-notes/rs-8-0-releases/rs-8-0-20-96/
- https://redis.io/docs/latest/operate/rs/release-notes/rs-7-22-releases/rs-7-22-2-179/
- https://redis.io/docs/latest/operate/rs/release-notes/rs-7-8-releases/rs-7-8-6-303/
- https://raw.githubusercontent.com/redis/redis/7.4/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/7.2/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/6.2/00-RELEASENOTES
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