CVE-2026-43930

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Source
https://cve.org/CVERecord?id=CVE-2026-43930
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43930.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-43930
Aliases
Published
2026-05-12T13:34:50.567Z
Modified
2026-07-08T08:13:28.244154778Z
Severity
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Parse Server: MFA SMS one-time password accepted twice under concurrent login
Details

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.76 and 9.9.0-alpha.2, a race condition in the MFA SMS one-time password (OTP) login path allows two concurrent /login requests carrying the same OTP to both succeed and both receive valid session tokens, breaking the single-use property of the OTP. The vulnerability requires the attacker to already possess the victim's password and intercept the active SMS OTP (e.g. via SIM swap, network mirror, or phishing relay) and to race the legitimate login request, so the practical attack surface is narrow. This vulnerability is fixed in 8.6.76 and 9.9.0-alpha.2.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-362"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43930.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
0 Unknown introduced commit / All previous commits are affected
Fixed
ea543b1049090ad7131e3f5c43b23ba2dba4d804
Introduced
532a461d30a6ed4457839f2caf5f30d5abf51a55
Fixed
4f90c5e10703e06f06e6674203b82e75409f2e58
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "8.6.76"
        },
        {
            "introduced": "9.0.0"
        },
        {
            "fixed": "9.9.0"
        }
    ],
    "cpe": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*",
    "source": "CPE_RANGE"
}

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
8.6.11
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
8.6.8
8.6.9
9.*
9.0.0
9.1.0
9.1.1
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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43930.json"