P4Verified

CVE-2025-14546: fastapi-sso 0 to before 0.19.0

CVE-2025-14546. CVSS 3.1 base score 6.3 (MEDIUM, Vendor/CNA). EPSS 0.00359 (percentile 0.27356), scored 05-Oct-2026. Fixed version: c905eafe2d6d7aab5d2b929e53ba98f238fdb21d. Fixed version: 6117d1a5ad498ba57d671e8a059ebe20db5abe02.

Affected technology

fastapi-sso · 0 to before 0.19.0
Vendor not specified by the source

Description’s affected range: before 0.19.0

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · Active user interaction

What an attacker can do

A remote attacker can trick a victim into visiting a malicious callback URL, which can result in the attacker's account being linked to the victim's internal account. Vendor/CNA’s CVSS 4.0 assessment (base score 5.4/10) rates confidentiality impact as high; integrity impact as low; availability impact as none.

Published 12-Oct-2026 00:35 UTC

CWE: CWE-285
CCR priority: 25.3 /100 (P4)
CVSS 3.1: 6.3 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N · Vendor/CNA
EPSS: 0.00359 · percentile 0.27677 · 2026-10-11
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-11 23:42:05.235979+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-05 23:09:08.830529+00:00 UTC
OSV.dev · Source record · observed 2026-10-07 03:19:31.921362+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-14546.html