Cyber Resilience

CVE-2026-48589

Open Redirect in Apache Shiro 2.0.0 – 2.2.1

Open Redirect
Published
25 May 2026
Modified
24 July 2026
Patch / advisory
View advisory
CVSS Score v4 0.0
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:A/V:D/RE:X/U:Green
EPSS Score 0.0035 28th percentile
Risk Priority 0 floored blend · peak EPSS

Summary

CVE-2026-48589 is a uncategorised-severity Open Redirect (CWE-601) vulnerability in Apache Shiro. Its CVSS base score is 0.0.

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 28th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) and AC-4 (Information Flow Enforcement) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

Apache Shiro’s Jakarta EE module used the HTTP Referer header in certain cases to issue redirect after a user login. In affected versions, insufficient validation of this client-controlled value could allow an attacker to influence the redirect target in applications…

more

using the Jakarta EE module. This issue affects Apache Shiro from 2.0-alpha to 2.2.0, and 3.0.0-alpha-1, only when using shiro-jakarta-ee integration module.

CWE(s)
CWE-601

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.
attack.mitre.org →
Why these techniques?

Open redirect (CWE-601) in public-facing Jakarta EE web module directly enables exploitation of the application via crafted Referer values.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-44598Same product: Apache Shiro
CVE-2026-49268Same product: Apache Shiro
CVE-2023-46750Same product: Apache Shiro
CVE-2026-23903Same product: Apache Shiro
CVE-2026-40961Same vendor: Apache
CVE-2026-43827Same product: Apache Shiro
CVE-2026-43828Same product: Apache Shiro
CVE-2023-46749Same product: Apache Shiro
CVE-2026-25854Same vendor: Apache
CVE-2026-48895Same vendor: Apache

Affected Assets

apache
shiro
3.0.0 · 2.0.0 — 2.2.1

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-10 Information Input Validation
  • AC-4 Information Flow Enforcement
  • SC-23 Session Authenticity
Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V3.7.2

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match
prevent

Directly requires validation of untrusted client input (Referer header) before using it to construct a redirect target.

AC-4 Information Flow Enforcement partial match
prevent

Enforces information-flow rules that can restrict allowed redirect destinations and block open redirects originating from the Jakarta EE module.

SC-23 Session Authenticity minimal match
prevent

Protects session authenticity during post-login redirects, indirectly limiting abuse of the Referer-driven redirect.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and untrusted-redirect controls that prevent CWE-601.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.23 Web filtering partial match
mitigates

Preventing access to attacker-controlled or malicious sites stops users from being redirected to untrusted locations via open-redirect or phishing links.

References