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DEBIAN-CVE-2026-86227

Type: advisorySource: OSV1 source record

A weakness has been identified in valkey-io valkey up to 9.0.5/9.1.1. This affects the function kvstoreGetHashtable of the file src/kvstore.c. This manipulation of the argument didx causes out-of-bounds read. It is possible to initiate the attack remotely. The attack is considered to have high complexity. It is indicated that the exploitability is difficult. The exploit has been made available to the public and could be used for attacks. Patch name: 4691888e7fab3df128f0bde5750c9fde2ae552fa. To fix this issue, it is recommended to deploy a patch. Exploitation requires cluster mode plus attacker-controlled dump.rdb at startup (data-dir write access, replication feed, or a stored crafted RDB) - an attacker-position DoS at boot, not network pre-auth. The issue report was closed stating it "is worth fixing for the sake of memory safety… but I don't think it meets our bar for a security disclosure."

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-86227

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-86227

valkey

Source reference: /affected/0/package/name

Affected versions
8.1.1+dfsg1-3

Source reference: /affected/0/versions

8.1.4+dfsg1-1

Source reference: /affected/0/versions

8.1.4+dfsg1-2

Source reference: /affected/0/versions

9.1.1-1

Source reference: /affected/0/versions

Fixed versions
9.1.2-1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "9.1.2-1"
          }
        ]
      }
    ],
    "package": {
      "name": "valkey",
      "purl": "pkg:deb/debian/valkey?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "8.1.1+dfsg1-3",
      "8.1.4+dfsg1-1",
      "8.1.4+dfsg1-2",
      "9.1.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86227.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#58357 · Revision 1
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Publisher date
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