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CVE-2026-82631

CVE-2026-82631 · valkey-io valkey Blocked-on-keys blocked.c handleClientsBlockedOnKey use after free

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A security flaw has been discovered in valkey-io valkey 9.1.0. The affected element is the function handleClientsBlockedOnKey of the file src/blocked.c of the component Blocked-on-keys Subsystem. The manipulation results in use after free. The attack may be performed from remote. A high complexity level is associated with this attack. The exploitability is described as difficult. The exploit has been released to the public and may be used for attacks. The patch is identified as b2fb0e13f5b4c8c2fb63dcfc2c37a067a0d6d20b. Applying a patch is advised to resolve this issue.

CVSS 2.1 · Low · EPSS 0.6% · Fix available

Published
Updated

Stack: system · database

Affected products and versions

  • valkey

    Versions
    • 9.1.0: Affected

    No fix published

  • redict Debian:14

    Versions
    • 7.3.0+ds-1
    • 7.3.0+ds-2
    • 7.3.0+ds-3
    • 7.3.0+ds-3~bpo12+1
    • 7.3.1+ds-1
    • 7.3.2+ds-1
    • 7.3.2+ds-1~bpo12+1
    • 7.3.5+ds-1
    • 7.3.5+ds-1~bpo12+1
    • 7.3.6+ds-1
    • 7.3.6+ds-1~bpo12+1
    • 7.3.6+ds-1~bpo13+1
    • 7.3.6+ds-2
    • 7.3.6+ds-2~bpo12+1
    • 7.3.6+ds-2~bpo13+1
    • 7.3.6+ds-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • redis Debian:12

    Versions
    • 5:7.0.11-1
    • 5:7.0.11-1+deb12u1
    • 5:7.0.12-1
    • 5:7.0.12-2
    • 5:7.0.13-1
    • 5:7.0.13-2
    • 5:7.0.14-1
    • 5:7.0.14-2
    • 5:7.0.15-1
    • 5:7.0.15-1~deb12u1
    • 5:7.0.15-1~deb12u10
    • 5:7.0.15-1~deb12u2
    • 5:7.0.15-1~deb12u3
    • 5:7.0.15-1~deb12u4
    • 5:7.0.15-1~deb12u5
    • 5:7.0.15-1~deb12u6
    • 5:7.0.15-1~deb12u7
    • 5:7.0.15-1~deb12u8
    • 5:7.0.15-1~deb12u9
    • 5:7.0.15-2
    • 5:7.0.15-3
    • 5:7.0.15-3.1
    • 5:7.2-rc2-1
    • 5:7.2-rc3-1
    • 5:7.2.0-1
    • 5:7.2.0-2
    • 5:7.2.1-1
    • 5:7.2.1-2
    • 5:7.2.2-1
    • 5:7.2.2-2
    • 5:7.2.3-1
    • 5:7.2.4-1
    • 5:7.2.5-1
    • 5:7.2.5-2
    • 5:7.2.5-3
    • 5:7.2~rc1-1
    • 5:8.0.0-1
    • 5:8.0.0-2
    • 5:8.0.2-2
    • 5:8.0.2-3
    • 5:8.0.4-1
    • 5:8.0.5-1
    • 5:8.0.6-1
    • 5:8.0.6-2
    • 5:8.0.6-3
    • 5:8.4.0-1
    • 5:8.6.1-1
    • 5:8.6.2-1
    • 5:8.6.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • redis Debian:13

    Versions
    • 5:8.0.2-3
    • 5:8.0.2-3+deb13u1
    • 5:8.0.2-3+deb13u2
    • 5:8.0.4-1
    • 5:8.0.5-1
    • 5:8.0.6-1
    • 5:8.0.6-2
    • 5:8.0.6-3
    • 5:8.4.0-1
    • 5:8.6.1-1
    • 5:8.6.2-1
    • 5:8.6.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • redis Debian:14

    Versions
    • 5:8.0.2-3
    • 5:8.0.4-1
    • 5:8.0.5-1
    • 5:8.0.6-1
    • 5:8.0.6-2
    • 5:8.0.6-3
    • 5:8.4.0-1
    • 5:8.6.1-1
    • 5:8.6.2-1
    • 5:8.6.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • valkey Debian:13

    Versions
    • 8.1.1+dfsg1-3
    • 8.1.1+dfsg1-3+deb13u1
    • 8.1.1+dfsg1-3+deb13u2
    • 8.1.4+dfsg1-1
    • 8.1.4+dfsg1-2
    • 9.1.1-1
    • 9.1.2-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • valkey Debian:14

    Versions
    • 8.1.1+dfsg1-3
    • 8.1.4+dfsg1-1
    • 8.1.4+dfsg1-2
    • 9.1.1-1
    Affected ranges
    • ECOSYSTEM: < 9.1.2-1

    Update to 9.1.2-1

  • valkey Ubuntu:Pro:24.04:LTS

    Versions
    • 7.2.5+dfsg1-2ubuntu4~24.04.1
    • 7.2.7+dfsg1-0ubuntu0.24.04.1
    • 7.2.8+dfsg1-0ubuntu0.24.04.1
    • 7.2.8+dfsg1-0ubuntu0.24.04.2
    • 7.2.8+dfsg1-0ubuntu0.24.04.3
    • 7.2.10+dfsg1-0ubuntu0.1
    • 7.2.11+dfsg1-0ubuntu0.1
    • 7.2.11+dfsg1-0ubuntu0.2
    • 7.2.12+dfsg1-0ubuntu0.1
    • 7.2.13+dfsg1-0ubuntu0.1
    • 7.2.13+dfsg1-0ubuntu0.1+esm1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • valkey Ubuntu:26.10

    Versions
    • 9.0.3-0ubuntu2
    • 9.0.4-0ubuntu1
    • 9.1.1-0ubuntu2
    • 9.1.2-0ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • valkey Ubuntu:26.04:LTS

    Versions
    • 8.1.3+dfsg1-0ubuntu2
    • 8.1.4+dfsg1-0ubuntu1
    • 9.0.2-0ubuntu1
    • 9.0.3-0ubuntu1
    • 9.0.3-0ubuntu2
    • 9.0.4-0ubuntu0.1
    • 9.0.4-0ubuntu0.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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