CVE-2026-33975

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Source
https://cve.org/CVERecord?id=CVE-2026-33975
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33975.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33975
Aliases
  • GHSA-vrcj-hv2q-c58m
Published
2026-05-05T19:19:18.112Z
Modified
2026-07-27T03:56:29.150674650Z
Severity
  • 8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N CVSS Calculator
Summary
twenty-server SSRF protection bypass via IPv4-mapped IPv6 address normalization
Details

Twenty is an open source CRM built with NestJS (Node.js). In versions 1.18.0 and earlier, the SSRF protection in twenty-server's SecureHttpClientService can be bypassed using IPv4-mapped IPv6 addresses in URL IP literals. Node.js's URL parser normalizes IPv4-mapped IPv6 addresses to compressed hex form (e.g., ::ffff:169.254.169.254 becomes ::ffff:a9fe:a9fe), but the isPrivateIp utility only recognizes the dotted-decimal notation. As a result, the hex form passes the SSRF check unchecked. Additionally, the socket lookup validation event does not fire for IP literal addresses, bypassing the second validation layer. An authenticated user can reach any internal IP, including cloud metadata endpoints, to exfiltrate credentials such as IAM keys.

Database specific 
{
    "cwe_ids": [
        "CWE-918"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33975.json"
}
References

Affected packages

Git / github.com/twentyhq/twenty

Affected ranges

Type
GIT
Repo
https://github.com/twentyhq/twenty
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
38a49650a38825f21213bca45c76be46d0535504
Database specific 
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.18.0"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.1.1
v0.1.2
v0.1.3
v0.1.4
v0.10.0
v0.10.1
v0.10.2
v0.10.3
v0.10.4
v0.10.5
v0.10.6
v0.11.0
v0.11.1
v0.11.2
v0.11.3
v0.12.0
v0.12.1
v0.12.2
v0.2.1
v0.2.2
v0.20.0
v0.20.1
v0.20.2
v0.21
v0.21.0
v0.21.2
v0.22.0
v0.22.1
v0.23.1
v0.23.2
v0.24.0
v0.24.1
v0.3.3
v0.30.0
v0.31.0
v0.4.0
v0.44.9
v0.51.10
v0.51.11
v0.53.0
v0.53.2
v0.53.4
v0.53.5
v0.53.6
v0.53.7
v0.54.7
v0.55.0
v0.55.2
v0.55.3
v0.55.4
v0.55.5
v0.55.7
v0.60.2
v0.60.4
v0.60.5
v0.60.6
v0.60.7
v1.*
v1.0.0
v1.0.4
v1.1.0
v1.10.0
v1.10.2
v1.10.3
v1.10.4
v1.10.5
v1.10.6
v1.10.7
v1.11.0
v1.11.14
v1.11.3
v1.11.4
v1.11.5
v1.11.6
v1.12.0
v1.12.12
v1.12.13
v1.12.14
v1.12.15
v1.12.17
v1.12.18
v1.12.3
v1.12.4
v1.12.5
v1.12.6
v1.12.7
v1.12.8
v1.13.0
v1.13.1
v1.13.10
v1.13.11
v1.13.2
v1.13.3
v1.13.8
v1.13.9
v1.14.0
v1.14.1
v1.14.2
v1.15.0
v1.15.10
v1.15.3
v1.15.7
v1.15.8
v1.15.9
v1.16.0
v1.16.10
v1.16.13
v1.16.14
v1.16.15
v1.16.16
v1.16.9
v1.17.0
v1.18.0
v1.2.0
v1.3.0
v1.3.1
v1.4.0
v1.4.1
v1.4.10
v1.4.11
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.7
v1.4.8
v1.4.9
v1.5.0
v1.6.0
v1.6.8
v1.7.0
v1.7.1
v1.7.10
v1.7.2
v1.7.3
v1.7.6
v1.7.7
v1.7.8
v1.7.9
v1.8.0
v1.8.1
v1.8.10
v1.8.11
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.8.6
v1.8.7
v1.8.8
v1.8.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33975.json"