CVE-2026-44288

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Source
https://cve.org/CVERecord?id=CVE-2026-44288
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44288.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-44288
Aliases
Downstream
Related
Published
2026-05-13T14:37:26.624Z
Modified
2026-07-15T01:49:04.536350283Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
protobufjs: Overlong UTF-8 decoding
Details

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs includes a minimal UTF-8 decoder that accepted overlong UTF-8 byte sequences and decoded them to their canonical characters instead of replacing them. An attacker who can provide protobuf binary data decoded through the affected UTF-8 path may be able to bypass application-level checks that inspect raw bytes before protobuf string decoding. For example, bytes that do not contain certain ASCII characters could decode to strings containing those characters. This vulnerability is fixed in 7.5.6 and 8.0.2.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44288.json",
    "cwe_ids": [
        "CWE-176"
    ]
}
References

Affected packages

Git / github.com/protobufjs/protobuf.js

Affected ranges

Type
GIT
Repo
https://github.com/protobufjs/protobuf.js
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2189e5beeca6a70e4c104dfdb9fb8200bc5f81fe
Introduced
933e8750dcd000c16a621a7344a4beaa034c4019
Fixed
658b93e163d9aff8c31236c168657bab5e2d9bbc
Database specific 
{
    "cpe": "cpe:2.3:a:protobufjs_project:protobufjs:*:*:*:*:*:node.js:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "7.5.6"
        },
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.0.2"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

6.*
6.0.0
6.0.1
6.0.2
6.1.0
6.1.1
6.2.0
6.2.1
6.3.0
6.3.1
6.4.0
6.4.1
6.4.2
6.4.3
6.4.4
6.4.5
6.4.6
6.5.0
6.5.1
6.5.2
6.5.3
6.6.0
6.6.1
6.6.2
6.6.3
6.6.4
6.6.5
6.7.0
6.7.1
6.7.2
6.7.3
6.8.0
6.8.1
6.8.2
6.8.3
6.8.4
6.8.5
6.8.6
6.8.7
6.8.8
protobufjs-cli-v1.*
protobufjs-cli-v1.0.0
protobufjs-cli-v1.0.1
protobufjs-cli-v1.0.2
protobufjs-cli-v1.1.0
protobufjs-cli-v1.1.1
protobufjs-cli-v1.1.2
protobufjs-cli-v1.1.3
protobufjs-cli-v1.1.4
protobufjs-cli-v1.2.0
protobufjs-cli-v2.*
protobufjs-cli-v2.0.0
protobufjs-cli-v2.0.1
protobufjs-v7.*
protobufjs-v7.0.0
protobufjs-v7.1.0
protobufjs-v7.1.1
protobufjs-v7.1.2
protobufjs-v7.2.0
protobufjs-v7.2.1
protobufjs-v7.2.2
protobufjs-v7.2.3
protobufjs-v7.2.4
protobufjs-v7.2.5
protobufjs-v7.2.6
protobufjs-v7.3.0
protobufjs-v7.3.1
protobufjs-v7.3.2
protobufjs-v7.3.3
protobufjs-v7.4.0
protobufjs-v7.5.0
protobufjs-v7.5.1
protobufjs-v7.5.2
protobufjs-v7.5.3
protobufjs-v7.5.4
protobufjs-v7.5.5
protobufjs-v8.*
protobufjs-v8.0.0
protobufjs-v8.0.1
v6.*
v6.10.0
v6.10.0-beta.0
v6.10.0-beta.1
v6.10.0-beta.2
v6.10.1
v6.10.1-beta.0
v6.10.2
v6.9.0
v6.9.0-beta.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44288.json"