SEPTEMBER 17, 2026
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Case File

CVE-2026-54893

LOW · CVSS 2.1 EPSS 0.14% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-06 · Last synced 2026-08-05

CyberRota Analysis

AI-Generated

The Microsoft Graph adapter in Swoosh is vulnerable to URL path injection due to improper handling of user-supplied email addresses in API request URLs. This flaw allows attackers to manipulate the request path and query string, potentially redirecting authenticated requests to unauthorized Microsoft Graph endpoints. Organizations using affected versions of Swoosh (1.12.0 to 1.26.3) that accept user-influenced email inputs should prioritize remediation to prevent exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-54893
Severity
LOW
CVSS
2.1
EPSS
0.14%
Microsoft

Original NVD Description

URL path injection in the Microsoft Graph adapter of Swoosh. Swoosh.Adapters.MsGraph builds its Microsoft Graph API request URL by interpolating the sender's email address into the URL path (/users/{from}/sendMail) without percent-encoding or validation. In applications that derive the from address from untrusted or user-influenced input (for example a relay, a contact form, or a "send as" feature), an attacker can place URL-special characters such as /, ?, or # in the local part of the address to escape the intended path segment and rewrite the path and query string of the request. Because the same authenticated POST is sent with the application's Microsoft Graph bearer token, the attacker can redirect it to other Graph endpoints within the token's scopes and control the request's query string. Applications that always use a fixed, trusted from address are not affected. This issue affects swoosh from 1.12.0 before 1.26.3.