CVE-2026-13277 in Verify Identity Access
Summary
by MITRE • 09/14/2026
IBM Verify Identity Access could allow a remote attacker to conduct phishing attacks, using an open redirect attack. By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to spoof the URL displayed to redirect a user to a malicious Web site that would appear to be trusted. This could allow the attacker to obtain highly sensitive information or conduct further attacks against the victim.
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Analysis
by VulDB Data Team • 09/14/2026
The identified vulnerability in IBM Verify Identity Access represents a classic open redirect flaw, which falls under the Common Weakness Enumeration category CWE-601: URL Redirection to Untrusted Site. This type of weakness occurs when an application accepts user-supplied input for redirection purposes without sufficiently validating whether the target destination is trusted or safe. In this specific instance, the vulnerability allows a remote attacker to manipulate the redirect mechanism within the IBM Verify Identity Access platform. By crafting a specially designed URL that includes malicious parameters, an adversary can exploit the lack of strict validation on the redirect targets. This technical flaw does not involve breaking encryption or bypassing authentication directly but rather abuses the trust relationship between the user and the legitimate application interface to facilitate social engineering attacks.
The operational impact of this vulnerability is primarily centered around phishing campaigns and credential harvesting. When a victim clicks on a link that appears to originate from IBM Verify Identity Access, they are redirected to a malicious website controlled by the attacker. Because the initial part of the URL displays the trusted domain name before redirecting, users may lower their guard, believing they are still interacting with the legitimate service. This deception enables attackers to create convincing phishing pages that mimic the look and feel of the authentic identity provider. Once on these fraudulent sites, victims can be coerced into entering sensitive credentials, personal identification information, or other confidential data. The attacker then captures this information for subsequent unauthorized access or further exploitation against the victim's accounts and associated systems.
From a threat intelligence perspective, this vulnerability aligns with ATT&CK technique T1566.002: Phishing: Spearphishing Link. Attackers leverage open redirects to bypass email security filters that might otherwise flag malicious domains if they were directly embedded in the message body. By using a trusted domain for the initial link, the attack evades many automated detection mechanisms designed to identify known bad actors or suspicious URLs. The ultimate goal is often credential theft, which can lead to account takeover and lateral movement within an organization's network if those credentials are reused across multiple services. This makes the vulnerability particularly dangerous in enterprise environments where single sign-on solutions like IBM Verify Identity Access serve as gateways to numerous critical applications.
Mitigation strategies for this issue involve both immediate technical fixes and broader security hygiene improvements. The primary remediation is to implement strict validation on all redirect parameters within the application code. Developers should maintain a whitelist of allowed domains or ensure that redirects only occur to paths relative to the current domain, thereby preventing redirection to external malicious sites. Additionally, implementing Content Security Policy headers can help mitigate some aspects of clickjacking and cross-site scripting attacks that often accompany such vulnerabilities. For end-users and administrators, it is crucial to verify the full URL in the browser address bar before entering any sensitive information, even if the initial domain appears legitimate. Regular security audits and penetration testing focused on authentication flows are recommended to identify similar weaknesses across other components of the identity management infrastructure.