CVE-2026-72584

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Source

https://cve.org/CVERecord?id=CVE-2026-72584

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72584.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-72584

Published

2026-08-10T10:41:27.492Z

Modified

2026-08-12T04:19:24.464693857Z

Severity

7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

fastschema - TOCTOU Race Condition Bypasses OTP Attempt Limit in Account Recovery

Details

A time-of-check/time-of-use (TOCTOU) race condition in fastschema through v0.15.1 allows an unauthenticated remote attacker to bypass the OTP attempt limit on the account recovery flow, enabling brute-force attacks on 6-digit OTP codes.

Database specific

{
    "cna_assigner": "TuranSec",
    "cwe_ids": [
        "CWE-367"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72584.json"
}

References

Affected packages

Git / github.com/fastschema/fastschema

Affected ranges

Type

GIT

Repo

https://github.com/fastschema/fastschema

Events

Introduced

Fixed

5613d16fe7d144abed0c880abe9f4c49897cf1f5

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.15.1"
        },
        {
            "fixed": "v0.15.1"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

v0.*

v0.0.1

v0.0.2

v0.0.3

v0.0.4

v0.0.5

v0.0.6

v0.0.7

v0.1.0

v0.1.1

v0.1.2

v0.1.3

v0.10.0

v0.10.1

v0.10.2

v0.10.3

v0.10.4

v0.10.5

v0.10.6

v0.10.7

v0.10.8

v0.10.9

v0.11.0

v0.11.1

v0.12.0

v0.13.0

v0.13.1

v0.14.0

v0.15.0

v0.2.0

v0.3.0

v0.3.1

v0.4.0

v0.5.0

v0.5.1

v0.6.0

v0.6.1

v0.6.2

v0.6.3

v0.6.4

v0.6.5

v0.7.0

v0.7.1

v0.7.2

v0.7.3

v0.7.4

v0.7.5

v0.7.6

v0.7.7

v0.7.8

v0.7.9

v0.8.0

v0.8.1

v0.8.2

v0.8.3

v0.8.4

v0.9.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72584.json"