Cyber Resilience

CVE-2026-44478

High

Published: 13 May 2026

Published
13 May 2026
Modified
15 May 2026
KEV Added
Patch
CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0006 18.6th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-44478 is a high-severity Improper Access Control (CWE-284) vulnerability. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 18.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

hoppscotch is an open source API development ecosystem. The fix for CVE-2026-28215 in version 2026.2.0 addresses the unauthenticated POST /v1/onboarding/config endpoint by checking onboardingCompleted and canReRunOnboarding before allowing config overwrites. However, GET /v1/onboarding/config still leaks all infrastructure secrets in plaintext…

more

to unauthenticated users when the ONBOARDING_RECOVERY_TOKEN stored in the database is an empty string. This vulnerability is fixed in 2026.4.0.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
Why these techniques?

Public-facing API endpoint with broken auth (CWE-284/287) directly enables exploitation of the app and leaks infrastructure secrets/credentials.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-23782Shared CWE-284
CVE-2026-22566Shared CWE-284
CVE-2026-1368Shared CWE-287
CVE-2025-25381Shared CWE-284
CVE-2025-57266Shared CWE-284
CVE-2026-28215Shared CWE-284, CWE-287
CVE-2026-46840Shared CWE-284, CWE-287
CVE-2026-39339Shared CWE-284
CVE-2026-46839Shared CWE-284
CVE-2025-71279Shared CWE-287

Affected Assets

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-284 CWE-287

The awareness and training policy mandates training on access control practices, directly reducing the likelihood of improper access control weaknesses being introduced or exploited.

addresses: CWE-284 CWE-287

Training covers access control policies and the consequences of improper access grants or usage by users.

addresses: CWE-284 CWE-287

Security training teaches access control policies and enforcement, reducing improper access control implementations.

addresses: CWE-284 CWE-287

Provides capability to review session content, directly detecting violations of access control.

addresses: CWE-284 CWE-287

System audit review detects violations of access controls by identifying unauthorized access attempts.

addresses: CWE-284 CWE-287

Control assessments verify that access controls are implemented correctly and operating as intended, detecting improper access control before exploitation.

addresses: CWE-284 CWE-287

Requiring formal approval, documented controls, and responsibilities for inter-system exchanges directly enforces proper access control between systems.

addresses: CWE-284 CWE-287

Penetration testing simulates unauthorized access attempts, directly detecting and enabling remediation of improper access control weaknesses.

References