CVE-2026-123487

Source
https://cve.org/CVERecord?id=CVE-2026-123487
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-123487.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-123487
Aliases
  • GHSA-9492-427f-466x
Published
2026-11-06T15:00:49Z
Modified
2026-11-07T02:46:53Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Parse Server 9.0.0 before 9.10.7-alpha.1 ReDoS via Email Validation Regex
Details

Parse Server before 8.6.115 and 9.0.0 before 9.10.7-alpha.1 validates user email address format with a regular expression whose run time grows quadratically with input length and that is applied without a length limit. An unauthenticated attacker who knows the application ID can send a sign-up request, or a logged-in user can update their own email, with a long crafted email address to block the Node.js event loop and deny service to all clients.

Database specific
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-1333"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123487.json"
}
References

Affected packages

Git / github.com/parse-community/parse-server

Affected ranges

Type
GIT
Repo
https://github.com/parse-community/parse-server
Events
Introduced
Fixed
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
Show details
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "9.0.0"
                },
                {
                    "fixed": "9.10.7-alpha.1"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "8.6.115"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        }
    ]
}

Affected versions

2.*
2.0.0
2.0.1
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.1.0
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.2.0
2.2.1
2.2.10
2.2.11
2.2.12
2.2.13
2.2.14
2.2.15
2.2.16
2.2.17
2.2.18
2.2.19
2.2.2
2.2.20
2.2.21
2.2.22
2.2.23
2.2.24
2.2.25
2.2.25-beta.1
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.2.9
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
2.3.7
2.3.8
2.4.0
2.4.1
2.4.2
2.5.0
2.5.1
2.5.2
2.5.3
2.6.0
2.6.1
2.6.2
2.6.3
2.6.4
2.6.5
2.7.0
2.7.1
2.7.2
2.7.3
2.7.4
2.8.0
2.8.2
3.*
3.0.0
3.1.0
3.1.1
3.1.2
3.1.3
3.10.0
3.2.0
3.2.1
3.2.2
3.2.3
3.3.0
3.4.0
3.4.1
3.5.0
3.6.0
3.7.0
3.7.1
3.7.2
3.8.0
3.9.0
4.*
4.0.0
4.0.1
4.0.2
4.1.0
4.2.0
4.3.0
4.4.0
4.5.0
5.*
5.0.0
5.0.0-alpha.1
5.1.0
5.1.1
5.2.0
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
5.3.0
5.3.1
5.3.2
5.3.3
5.4.0
6.*
6.0.0
6.1.0
6.2.0
6.2.1
6.2.2
6.3.0
6.3.1
6.4.0
7.*
7.0.0
7.1.0
7.2.0
7.3.0
7.4.0
8.*
8.0.0
8.0.1
8.0.2
8.1.0
8.2.0
8.2.1
8.2.2
8.2.3
8.2.4
8.2.5
8.3.0
8.4.0
8.5.0
8.6.0
8.6.1
8.6.10
8.6.100
8.6.101
8.6.102
8.6.103
8.6.104
8.6.105
8.6.106
8.6.107
8.6.108
8.6.109
8.6.11
8.6.110
8.6.111
8.6.112
8.6.113
8.6.114
8.6.12
8.6.13
8.6.14
8.6.15
8.6.16
8.6.17
8.6.18
8.6.19
8.6.2
8.6.20
8.6.21
8.6.22
8.6.23
8.6.24
8.6.25
8.6.26
8.6.27
8.6.28
8.6.29
8.6.3
8.6.30
8.6.31
8.6.32
8.6.33
8.6.34
8.6.35
8.6.36
8.6.37
8.6.38
8.6.39
8.6.4
8.6.40
8.6.41
8.6.42
8.6.43
8.6.44
8.6.45
8.6.46
8.6.47
8.6.48
8.6.49
8.6.5
8.6.50
8.6.51
8.6.52
8.6.53
8.6.54
8.6.55
8.6.56
8.6.57
8.6.58
8.6.59
8.6.6
8.6.60
8.6.61
8.6.62
8.6.63
8.6.64
8.6.65
8.6.66
8.6.67
8.6.68
8.6.69
8.6.7
8.6.70
8.6.71
8.6.72
8.6.73
8.6.74
8.6.75
8.6.76
8.6.77
8.6.78
8.6.79
8.6.8
8.6.80
8.6.81
8.6.82
8.6.83
8.6.84
8.6.85
8.6.86
8.6.87
8.6.88
8.6.89
8.6.9
8.6.90
8.6.91
8.6.92
8.6.93
8.6.94
8.6.95
8.6.96
8.6.97
8.6.98
8.6.99
9.*
9.0.0
9.1.0
9.1.1
9.10.0
9.10.1
9.10.2
9.10.3
9.10.4
9.10.5
9.10.6
9.2.0
9.3.0
9.3.1
9.4.0
9.4.1
9.5.0
9.5.1
9.6.0
9.6.1
9.7.0
9.8.0
9.9.0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-123487.json"