UBUNTU-CVE-2026-84372 (CVE-2026-84372)
Vulnerability from osv_ubuntu – Published: 2026-09-01 22:17 – Updated: 2026-09-16 11:43 – Source website
VLAI
Details
Predis is a flexible and feature-complete Redis and Valkey client for PHP. From version 3.0.0-RC1 until version 3.3.0, pipeline handling on aggregate cluster and replication connections reparses an already serialized RESP buffer in AbstractAggregateConnection::write() by splitting it with explode("\r\n") instead of honoring RESP length prefixes. Attacker-controlled keys or values containing CRLF sequences can therefore be interpreted by Command::deserializeCommand() as additional commands. On cluster connections, ClusterStrategy::getFakeKey() can route injected keyless commands using the literal fake key value "key", permitting operations such as shard-wide cache deletion, targeted data modification, data reads, or node disruption. On replication connections, malformed reparsing can throw an uncaught exception and repeatedly terminate affected requests. Only pipeline() reaches this vulnerable path; transaction() and MULTI are not affected. This issue is fixed in version 3.3.0.
Severity
9.8 (Critical)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-nrk-predis",
"binary_version": "1.0.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "php-nrk-predis",
"purl": "pkg:deb/ubuntu/php-nrk-predis@1.0.0-1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.0-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-nrk-predis",
"binary_version": "1.0.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "php-nrk-predis",
"purl": "pkg:deb/ubuntu/php-nrk-predis@1.0.0-1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.0-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-nrk-predis",
"binary_version": "1.0.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "php-nrk-predis",
"purl": "pkg:deb/ubuntu/php-nrk-predis@1.0.0-1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.0-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-nrk-predis",
"binary_version": "1.1.10-1"
},
{
"binary_name": "php-predis",
"binary_version": "1.1.10-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "php-nrk-predis",
"purl": "pkg:deb/ubuntu/php-nrk-predis@1.1.10-1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.0.0-1",
"1.1.9-5",
"1.1.10-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-predis",
"binary_version": "2.2.2-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "php-nrk-predis",
"purl": "pkg:deb/ubuntu/php-nrk-predis@2.2.2-1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.2.0-1",
"2.2.2-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "php-predis",
"binary_version": "2.4.1-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "php-nrk-predis",
"purl": "pkg:deb/ubuntu/php-nrk-predis@2.4.1-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.0-1",
"2.4.1-1"
]
}
],
"aliases": [],
"details": "Predis is a flexible and feature-complete Redis and Valkey client for PHP. From version 3.0.0-RC1 until version 3.3.0, pipeline handling on aggregate cluster and replication connections reparses an already serialized RESP buffer in AbstractAggregateConnection::write() by splitting it with explode(\"\\r\\n\") instead of honoring RESP length prefixes. Attacker-controlled keys or values containing CRLF sequences can therefore be interpreted by Command::deserializeCommand() as additional commands. On cluster connections, ClusterStrategy::getFakeKey() can route injected keyless commands using the literal fake key value \"key\", permitting operations such as shard-wide cache deletion, targeted data modification, data reads, or node disruption. On replication connections, malformed reparsing can throw an uncaught exception and repeatedly terminate affected requests. Only pipeline() reaches this vulnerable path; transaction() and MULTI are not affected. This issue is fixed in version 3.3.0.",
"id": "UBUNTU-CVE-2026-84372",
"modified": "2026-09-16T11:43:10Z",
"published": "2026-09-01T22:17:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-84372"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-84372"
},
{
"type": "REPORT",
"url": "https://github.com/predis/predis/security/advisories/GHSA-w6f5-v2h6-g786"
},
{
"type": "REPORT",
"url": "https://github.com/predis/predis/issues/1574"
},
{
"type": "REPORT",
"url": "https://github.com/predis/predis/pull/1586"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-84372"
]
}
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Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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