Common Weakness Enumeration
CWE-601
AllowedURL Redirection to Untrusted Site ('Open Redirect')
Abstraction: Base · Status: Draft
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
2449 vulnerabilities reference this CWE, most recent first.
CVE-2026-10861 (GCVE-0-2026-10861)
Vulnerability from cvelistv5 – Published: 2026-06-04 13:26 – Updated: 2026-06-04 13:45 X_Open Source
VLAI
EPSS
VEX
Title
MISP post-login open redirect via pre_login_requested_url
Summary
An open redirect vulnerability existed in MISP UsersController::routeafterlogin() because the value stored in the pre_login_requested_url session key was used as the post-login redirect destination without sufficiently enforcing that it was a local application path.
An unauthenticated remote attacker could craft a link that causes a victim to visit a trusted MISP instance and, after successful authentication, be redirected to an attacker-controlled external URL. This could be abused to increase the credibility of phishing attacks, redirect users to counterfeit login pages, or deliver attacker-controlled content from an untrusted domain. CWE-601 describes this weakness as accepting user-controlled input that specifies an external link and using it in a redirect, with phishing as a common consequence.
The patch mitigates the issue by decoding and parsing the URL, rejecting URLs with a scheme, host, user component, missing or non-local path, and protocol-relative forms such as //example.com and /\example.com.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-04 13:45 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/MISP/MISP/commit/ae760b7bf534f… | patch |
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CVE-2026-10856 (GCVE-0-2026-10856)
Vulnerability from cvelistv5 – Published: 2026-06-04 13:17 – Updated: 2026-06-04 13:47
VLAI
EPSS
VEX
Title
Open redirect in MISP dashboard button widget URL handling
Summary
A URL validation flaw in the MISP dashboard button widget allowed a crafted relative-looking URL to be accepted as a local path while being interpreted by browsers as an external URL. The validation rejected URLs containing an explicit scheme, host, or user component, but did not reject paths beginning with a slash followed by a backslash, such as /\example.com. Some browsers normalize backslashes in URLs as forward slashes, which can turn this into a scheme-relative external navigation target. In addition, the generated href concatenated the reconstructed URL with the original URL, increasing the possibility of unsafe or malformed link generation.
An attacker able to configure or influence a dashboard button URL could craft a button that appears to point inside the application but redirects users to an attacker-controlled site when clicked. This could be used for phishing, credential theft, or social engineering. The patch fixes the issue by rejecting empty paths and paths starting with /\, and by emitting only the reconstructed validated URL in the anchor href.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-04 13:47 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
| URL | Tags |
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| https://github.com/MISP/MISP/commit/f879f16fb5db7… | patch |
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CVE-2026-10839 (GCVE-0-2026-10839)
Vulnerability from cvelistv5 – Published: 2026-06-17 11:11 – Updated: 2026-06-17 14:57
VLAI
EPSS
VEX
Title
Open redirection vulnerability in Password Manager
Summary
Open redirection vulnerability in the authentication system allows an attacker to use manipulated values in the X-Forwarded-Host header to alter the URLs generated by the application. A successful exploit could redirect authenticated users to malicious sites following login procedures or interaction with the interface, resulting in limited impact on confidentiality and integrity.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 14:57 UTC
CWE
- CWE-601 - URL redirection to untrusted site ('open redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.incibe.es/en/incibe-cert/notices/avis… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Password Manager | Password Manager |
Affected:
0 , < 08/07/2025
(date)
Unaffected: 08/07/2025 (date) cpe:2.3:a:password_manager:password_manager:*:*:*:*:*:*:*:* |
Date Public
2026-06-17 10:00
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CVE-2026-10837 (GCVE-0-2026-10837)
Vulnerability from cvelistv5 – Published: 2026-06-17 11:11 – Updated: 2026-06-17 14:58
VLAI
EPSS
VEX
Title
Open redirection vulnerability in Password Manager
Summary
Open redirection vulnerability due to insufficient validation of the X-Forwarded-Host HTTP header. An attacker could create manipulated links that, when opened by a victim, cause the victim to be redirected to domains controlled by the attacker, enabling phishing or deception attacks with limited impact on confidentiality and integrity.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 14:58 UTC
CWE
- CWE-601 - URL redirection to untrusted site ('open redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.incibe.es/en/incibe-cert/notices/avis… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Password Manager | Password Manager |
Affected:
0 , < 08/07/2025
(date)
Unaffected: 08/07/2025 (date) cpe:2.3:a:password_manager:password_manager:*:*:*:*:*:*:*:* |
Date Public
2026-06-17 10:00
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CVE-2026-10562 (GCVE-0-2026-10562)
Vulnerability from cvelistv5 – Published: 2026-06-30 20:34 – Updated: 2026-07-01 15:38
VLAI
EPSS
VEX
Title
Unauthenticated Open Redirect Vulnerability on TP-Link Archer AX20 Web Interface
Summary
An
unauthenticated URL redirection vulnerability has been identified in Archer
AX20 V2 due to improper validation of user-supplied URL input within the web
interface. An unauthenticated attacker
can craft URLs containing URL-encoded path traversal sequences.
When
processed by the embedded web server, these inputs may cause the device to
respond with HTTP 3xx redirects to attacker-controlled external domains.
This issue affects Archer AX20 V2.0: through 2.1.9 Build 20230829.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-01 15:38 UTC
CWE
- CWE-601 - URL redirection to untrusted site ('open redirect')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/en/support/download/arche… | patch |
| https://www.tp-link.com/en/support/faq/5156/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Archer AX20 V2.0 |
Affected:
0 , < V2_260527
(custom)
|
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CVE-2026-10545 (GCVE-0-2026-10545)
Vulnerability from cvelistv5 – Published: 2026-07-30 17:59 – Updated: 2026-07-30 18:32
VLAI
EPSS
VEX
Title
IBM Planning Analytics Local is affected by Open Redirect
Summary
IBM Planning Analytics Local 2.1.0 through 2.1.21 is vulnerable to an open redirect that allows an attacker to redirect users to arbitrary external websites via a crafted URL. If used in SSO authentication flows, this could result in exposure of session tokens and allow attackers to hijack user sessions.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 18:32 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7278566 | vendor-advisorypatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Planning Analytics Local |
Affected:
2.1.0 , ≤ 2.1.21
(semver)
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CVE-2026-9245 (GCVE-0-2026-9245)
Vulnerability from cvelistv5 – Published: 2026-05-22 15:24 – Updated: 2026-05-22 16:54
VLAI
EPSS
VEX
Summary
Improper input validation in the external authentication provider flow in Devolutions Server allows an unauthenticated remote attacker to redirect victims to an attacker-controlled domain via a crafted login link.
This issue affects :
* Devolutions Server 2026.1.6.0 through 2026.1.16.0
* Devolutions Server 2025.3.20.0 and earlier
Severity
5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-22 16:54 UTC
CWE
- CWE-601 - Url redirection to untrusted site open redirect
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Devolutions | Server |
Affected:
2026.1.6.0 , ≤ 2026.1.16.0
(custom)
Affected: 0 , ≤ 2025.3.20.0 (custom) |
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CVE-2026-8284 (GCVE-0-2026-8284)
Vulnerability from cvelistv5 – Published: 2026-07-21 12:11 – Updated: 2026-07-28 11:31
VLAI
EPSS
VEX
Title
Open Redirect in Universal Sotware's FlexCity
Summary
URL redirection to untrusted site ('open redirect') vulnerability in Universal Software Inc. FlexCity allows Input Data Manipulation.
This issue affects FlexCity: from 5.536.0 before 5.542.0.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 16:12 UTC
CWE
- CWE-601 - URL redirection to untrusted site ('open redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://siberguvenlik.gov.tr/guvenlik-bildirimler… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Universal Software Inc. | FlexCity |
Affected:
5.536.0 , < 5.542.0
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CVE-2026-8152 (GCVE-0-2026-8152)
Vulnerability from cvelistv5 – Published: 2026-07-22 12:21 – Updated: 2026-07-22 18:55
VLAI
EPSS
VEX
Title
Unblu Spark Open Redirect leading to DOM-Based XSS
Summary
Unblu Spark contains an open redirect vulnerability that can be escalated to a DOM-based cross-site scripting (XSS) attack.
When Unblu Spark is deployed with com.unblu.identifier.siteEmbeddedSetup=true, it runs in the same origin as the host application. Any JavaScript injected through this vulnerability therefore executes with full access to the host application's cookies, DOM, and same-origin APIs — an attacker can reach all resources of the host application, not just Unblu's. This expanded blast radius is the reason on-premises deployments using this configuration are rated CRITICAL.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 18:54 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://docs.unblu.com/latest/security-bulletins/… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unblu inc. | Unblu Spark |
Affected:
0 , ≤ 8.36.1
(semver)
Unaffected: 8.36.1-hotfix.0 (semver) Unaffected: 8.37.0 (semver) |
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CVE-2026-7504 (GCVE-0-2026-7504)
Vulnerability from cvelistv5 – Published: 2026-05-19 11:01 – Updated: 2026-07-15 00:39
VLAI
EPSS
VEX
Title
Org.keycloak/keycloak-services: open redirect when using wildcard valid redirect uris in keycloak
Summary
A flaw was found in Keycloak's URL validation logic during redirect operations. By crafting a malicious request, an attacker could bypass validation to redirect users to unauthorized URLs, potentially leading to the exposure of sensitive information within the domain or facilitating further attacks. This vulnerability specifically affects Keycloak clients configured with a wildcard (*) in the "Valid Redirect URIs" field and requires user interaction to be successfully exploited.
The issue stems from a discrepancy in how Keycloak and the underlying Java URI implementation handle the user-info component of a URL. If a malicious redirect URL is constructed using multiple @ characters in the user-info section, Java's URI parser fails to extract the user-info, leaving only the raw authority field. Consequently, Keycloak's validation check fails to detect the malformed user-info, falls back to a wildcard comparison, and incorrectly permits the malicious redirect.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-19 12:22 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:19594 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:19595 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:19596 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:19597 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-7504 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2464128 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2.16-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.2 |
Unaffected:
26.2-21 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.2.16 |
cpe:/a:redhat:build_keycloak:26.2::el9
|
|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.12-1 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4-17 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4.12 |
cpe:/a:redhat:build_keycloak:26.4::el9
|
|
| Red Hat | Red Hat build of Keycloak 26.2.16 |
Unaffected:
rhel9-operator , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.2::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4.12 |
Unaffected:
rhel9-operator , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
Date Public
2026-05-19 10:52
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Mitigation MIT-5
Implementation
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
- Use a list of approved URLs or domains to be used for redirection.
Mitigation
Architecture and Design
Use an intermediate disclaimer page that provides the user with a clear warning that they are leaving the current site. Implement a long timeout before the redirect occurs, or force the user to click on the link. Be careful to avoid XSS problems (CWE-79) when generating the disclaimer page.
Mitigation MIT-21.2
Architecture and Design
Strategy: Enforcement by Conversion
- When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
- For example, ID 1 could map to "/login.asp" and ID 2 could map to "http://www.example.com/". Features such as the ESAPI AccessReferenceMap [REF-45] provide this capability.
Mitigation
Architecture and Design
Ensure that no externally-supplied requests are honored by requiring that all redirect requests include a unique nonce generated by the application [REF-483]. Be sure that the nonce is not predictable (CWE-330).
Mitigation MIT-6
Architecture and Design
Implementation
Strategy: Attack Surface Reduction
- Understand all the potential areas where untrusted inputs can enter your software: parameters or arguments, cookies, anything read from the network, environment variables, reverse DNS lookups, query results, request headers, URL components, e-mail, files, filenames, databases, and any external systems that provide data to the application. Remember that such inputs may be obtained indirectly through API calls.
- Many open redirect problems occur because the programmer assumed that certain inputs could not be modified, such as cookies and hidden form fields.
Mitigation MIT-29
Operation
Strategy: Firewall
Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
CAPEC-178: Cross-Site Flashing
An attacker is able to trick the victim into executing a Flash document that passes commands or calls to a Flash player browser plugin, allowing the attacker to exploit native Flash functionality in the client browser. This attack pattern occurs where an attacker can provide a crafted link to a Flash document (SWF file) which, when followed, will cause additional malicious instructions to be executed. The attacker does not need to serve or control the Flash document. The attack takes advantage of the fact that Flash files can reference external URLs. If variables that serve as URLs that the Flash application references can be controlled through parameters, then by creating a link that includes values for those parameters, an attacker can cause arbitrary content to be referenced and possibly executed by the targeted Flash application.