CVE-2026-45274

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Source
https://cve.org/CVERecord?id=CVE-2026-45274
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45274.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45274
Aliases
  • GHSA-3q85-5vj5-qx5v
Published
2026-08-19T14:38:58Z
Modified
2026-10-28T02:31:01Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
MyBooks: Unauthenticated Registration Bypass via Missing Server-Side ALLOW_REGISTER Enforcement
Details

MyBooks is anebook management web server also known as Talebook. In 3.41.2 and earlier, the SignUp.post handler for POST /api/user/sign_up in webserver/handlers/user.py does not enforce the ALLOW_REGISTER configuration flag, even though the frontend hides registration controls when the flag is false. An unauthenticated remote attacker can call the endpoint directly and create a valid account on an instance whose administrator disabled public registration. The process_auth_header function in webserver/handlers/base.py also does not verify the account's active flag, so the newly created and unactivated account can authenticate immediately and access user-level API functionality. The bypass defeats the intended account-creation policy and can supply the low-privilege account required by related authorization vulnerabilities. This issue is fixed in version 3.42.0.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-602"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45274.json"
}
References

Affected packages

Git / github.com/poxenstudio/mybooks

Affected ranges

Type
GIT
Repo
https://github.com/poxenstudio/mybooks
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
35661edda0824dc4e0c1077f9ca75fd938f2e2b5
Fixed
a1780c98b00566af7da2fc099fe38500efc02e92
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "3.42.0"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "a1780c98b00566af7da2fc099fe38500efc02e92"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "original_tag":  "3.42.0",
            "range":  [
                {
                    "fixed":  "35661edda0824dc4e0c1077f9ca75fd938f2e2b5"
                }
            ],
            "source":  "REFERENCES_TAG"
        }
    ]
}

Affected versions

3.*
3.22.0
3.23.0
3.24.1
3.25.0
3.25.1
3.26.0
3.27.0
3.28.0
3.29.0
3.29.1
3.30.0
3.30.1
3.30.2
3.31.1
3.31.2
3.32.0
3.33.0
3.34.0
3.36.0
3.36.1
3.37.0
3.37.1
3.38.0
3.38.1
3.39.0
3.40.0
3.40.1
3.41.0
3.41.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45274.json"