Bug#1144957: valkey: CVE-2026-63639

Source: valkey
Version: 8.1.4+dfsg1-2
Severity: grave
Tags: security upstream
Justification: user security hole
Forwarded: https://github.com/valkey-io/valkey/pull/4073
X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>

Hi,

The following vulnerability was published for valkey.

CVE-2026-63639[0]:
| 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 RESTORE command accepts a
| malformed RDB stream payload that assigns one Pending Entry List
| NACK to multiple consumers during stream consumer-group
| deserialization, causing a use-after-free when one consumer is
| deleted while another still references the shared NACK and
| potentially allowing remote code execution. This issue is fixed in
| versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-63639
    https://www.cve.org/CVERecord?id=CVE-2026-63639
[1] https://github.com/valkey-io/valkey/pull/4073
[2] https://github.com/valkey-io/valkey/security/advisories/GHSA-mvcj-73cw-22m4

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore