{"id":"CVE-2026-46556","aliases":["GHSA-xq32-9g7q-7297","PYSEC-2026-2479"],"url":"https://o3.security/vulnerability/CVE-2026-46556","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.","published":"2026-07-21T20:34:23.536Z","modified":"2026-08-12T03:51:26.031805549Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":{"score":0.00209,"percentile":0.11273,"asOf":"2026-08-18"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"flaskbb","fixedVersion":null}],"fix":{"url":"https://github.com/flaskbb/flaskbb/commit/e87e585f54bbe36694e91d52ee9b2d2e65dd4ab5","label":"flaskbb/flaskbb@e87e585"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46556.json"},{"type":"ADVISORY","url":"https://github.com/flaskbb/flaskbb/security/advisories/GHSA-xq32-9g7q-7297"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46556"},{"type":"FIX","url":"https://github.com/flaskbb/flaskbb/commit/e87e585f54bbe36694e91d52ee9b2d2e65dd4ab5"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:26.031805549Z"}}