CVE-2026-46556

See a problem?
Please try reporting it to the source first.

Source

https://cve.org/CVERecord?id=CVE-2026-46556

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46556.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-46556

Aliases

Published

2026-07-21T20:34:23Z

Modified

2026-10-21T02:58:12Z

Severity

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

Summary

FlaskBB: SSRF in get_image_info() via unrestricted avatar URL

Details

FlaskBB is a Forum Software written in Python using the micro framework Flask. Prior to version 2.2.1, a Server-Side Request Forgery (SSRF) vulnerability in get_image_info() allows any authenticated user to force the server to send HTTP requests to arbitrary internal endpoints, including cloud metadata services. This is a blind SSRF with confirmed internal port scanning and internal API triggering capabilities. Version 2.2.1 patches the issue.

Database specific

{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-918"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46556.json"
}

References

Affected packages

Git / github.com/flaskbb/flaskbb

Affected ranges

Type

GIT

Repo

https://github.com/flaskbb/flaskbb

Events

Introduced

Fixed

9f68ee7b5f9e08c0472d3998457d0f5c6870ce29

Fixed

e87e585f54bbe36694e91d52ee9b2d2e65dd4ab5

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "fixed":  "2.2.1"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "e87e585f54bbe36694e91d52ee9b2d2e65dd4ab5"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

v1.*

v1.0

v2.*

v2.0.0

v2.1.0

v2.2.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46556.json"