CVE-2026-56684
7.5
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's tlsProcessPendingData function iterates pending_list while an authenticated client can trigger CLIENT KILL, causing connTLSClose to delete the iterator's cached next node and producing a use-after-free that can crash the server or potentially allow remote code execution when TLS is enabled. This issue is fixed in versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| valkey-io | valkey | < 7.2.14 | affected |
| valkey-io | valkey | >= 8.0.0, < 8.0.10 | affected |
| valkey-io | valkey | >= 8.1.0, < 8.1.9 | affected |
| valkey-io | valkey | >= 9.0.0, < 9.0.5 | affected |
| valkey-io | valkey | >= 9.1.0, < 9.1.1 | affected |
Weaknesses
- CWE-416: CWE-416: Use After Free
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://github.com/valkey-io/valkey/security/advisories/GHSA-53mc-f3m3-99vh
- https://github.com/valkey-io/valkey/pull/4234
- https://github.com/valkey-io/valkey/commit/7cd5bcb7575d750ec2de618db80da58680a10fe3
- https://github.com/valkey-io/valkey/releases/tag/7.2.14
- https://github.com/valkey-io/valkey/releases/tag/8.0.10
- https://github.com/valkey-io/valkey/releases/tag/8.1.9
- https://github.com/valkey-io/valkey/releases/tag/9.0.5
- https://github.com/valkey-io/valkey/releases/tag/9.1.1
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