CVE-2026-49252

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Source
https://cve.org/CVERecord?id=CVE-2026-49252
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49252.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-49252
Aliases
Published
2026-06-18T20:01:31.307Z
Modified
2026-07-15T01:49:22.405978744Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L CVSS Calculator
Summary
deepstream is vulnerable to prototype pollution
Details

deepstream is a server that allows clients and backend services to sync data, send messages and make rpcs at scale. Versions prior to 10.0.5 are vulnerable to Prototype Pollution. Exploitation can lead to potential privilege escalation from any authenticated user with write permission to any record. This issue has been fixed in version 10.0.5.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49252.json",
    "cwe_ids": [
        "CWE-1321"
    ]
}
References

Affected packages

Git / github.com/deepstreamio/deepstream.io

Affected ranges

Type
GIT
Repo
https://github.com/deepstreamio/deepstream.io
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
54b8e2958a98df444b5b5d9a66e22872afd84e44
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "10.0.5"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.2.1
0.2.10
0.2.11
0.2.12
0.2.13
0.2.14
0.2.16
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.2.7
0.2.8
0.2.9
0.5.0
0.6.0
0.7.0
0.7.1
0.8.0
0.9.0
5.*
5.0.0-rc.4
5.0.16
5.1.0
v1.*
v1.0.0
v1.0.0-beta.4
v1.0.0-beta.5
v1.0.0-beta.6
v1.0.0-beta.7
v1.0.0-rc.4
v1.0.0-rc.5
v1.0.1
v1.0.2
v1.0.3
v1.1.0
v1.1.1
v1.2.0-beta.1
v1.2.0-rc.1
v10.*
v10.0.0
v10.0.1
v10.0.2
v10.0.3
v10.0.4
v2.*
v2.0.0
v2.0.1
v2.1.0
v2.1.1
v2.1.2
v2.1.3
v2.2.0
v2.2.1
v2.2.2
v2.3.0
v2.3.2
v2.3.3
v2.3.4
v2.3.5
v2.3.6
v2.3.7
v2.4.0
v3.*
v3.0.0
v3.0.1
v3.1.0
v4.*
v4.0.0
v4.0.0-rc.31
v4.0.1
v4.0.2
v4.0.3
v4.0.4
v4.0.5
v4.0.6
v4.1.0
v4.2.0
v4.2.1
v4.2.2
v4.2.3
v4.2.4
v4.2.5
v5.*
v5.0.0
v5.0.1
v5.0.10
v5.0.11
v5.0.12
v5.0.13
v5.0.14
v5.0.15
v5.0.2
v5.0.3
v5.0.4
v5.0.5
v5.0.6
v5.0.7
v5.0.8
v5.0.9
v5.1.1
v5.1.2
v5.1.4
v5.1.5
v5.1.6
v5.1.7
v5.1.8
v5.2.0
v5.2.1
v5.2.2
v5.2.3
v5.2.4
v5.2.6
v6.*
v6.0.0
v6.0.1
v6.1.0
v6.1.1
v6.1.2
v6.2.0
v6.2.1
v6.2.2
v7.*
v7.0.0
v7.0.1
v7.0.10
v7.0.2
v7.0.3
v7.0.4
v7.0.5
v7.0.6
v7.0.7
v7.0.8
v7.0.9
v8.*
v8.0.0
v9.*
v9.0.0
v9.0.1
v9.1.0
v9.1.1
v9.1.2
v9.1.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49252.json"