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.
2496 vulnerabilities reference this CWE, most recent first.
CVE-2026-64941 (GCVE-0-2026-64941)
Vulnerability from cvelistv5 – Published: 2026-08-10 11:05 – Updated: 2026-08-10 13:00
VLAI
EPSS
VEX
Title
Open redirect in Phoenix.LiveView.validate_local_url!/2 via ASCII tab, LF and CR
Summary
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in phoenixframework phoenix_live_view allows an attacker to send a victim's browser to an origin of the attacker's choosing via a :to value containing ASCII tab, LF or CR.
redirect/2 validates :to through the private validate_local_url!/2 in lib/phoenix_live_view.ex, which is intended to guarantee the target is a path within the application. It rejects a leading // and any backslash, but not ASCII tab, LF or CR. Browsers strip those three characters before parsing a URL, so a value such as /<TAB>/example.com passes validation as a path and is then resolved as the scheme-relative URL //example.com. The live navigation functions share the guard but are not affected, because the client expands their target against the current origin. push_patch/2 is also affected before 0.7.0, which is when that expansion was added.
This issue affects phoenix_live_view: from 0.5.0 before 1.0.19, from 1.1.0-rc.0 before 1.1.33, and from 1.2.0-rc.0 before 1.2.9.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 13:00 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| phoenixframework | phoenix_live_view |
Affected:
0.5.0 , < 1.0.19
(semver)
Affected: 1.1.0-rc.0 , < 1.1.33 (semver) Affected: 1.2.0-rc.0 , < 1.2.9 (semver) cpe:2.3:a:phoenixframework:phoenix_live_view:*:*:*:*:*:*:*:* |
|
| phoenixframework | phoenix_live_view |
Affected:
b20dba3f65a380b2e4868dae03397f13d2daa070 , < *
(git)
cpe:2.3:a:phoenixframework:phoenix_live_view:*:*:*:*:*:*:*:* |
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CVE-2026-64645 (GCVE-0-2026-64645)
Vulnerability from cvelistv5 – Published: 2026-07-27 17:37 – Updated: 2026-07-28 14:02
VLAI
EPSS
VEX
Title
Next.js: Server-Side Request Forgery in rewrites via attacker-controlled destination hostname
Summary
Next.js is a React framework for building full-stack web applications. In versions 12.0.0 through 15.5.20 and 16.0.0 through 16.2.10, a
rewrites() or redirects() rule that builds its external destination hostname from request-controlled input can be pointed at an arbitrary hostname, regardless of the rule's hostname suffix. For a rewrite, Next.js proxies the request to that arbitrary host and serves the response from the application's origin, leading to Server-Side Request forgery. A redirects() rule configured this way is vulnerable to an Open Redirect. This issue has been fixed in versions 15.5.21 and 16.2.11.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 14:01 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/vercel/next.js/security/adviso… | x_refsource_CONFIRM |
| https://github.com/vercel/next.js/commit/35f50135… | x_refsource_MISC |
| https://github.com/vercel/next.js/commit/d3033266… | x_refsource_MISC |
| https://github.com/vercel/next.js/releases/tag/v15.5.21 | x_refsource_MISC |
| https://github.com/vercel/next.js/releases/tag/v16.2.11 | x_refsource_MISC |
Impacted products
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CVE-2026-63768 (GCVE-0-2026-63768)
Vulnerability from cvelistv5 – Published: 2026-07-20 19:08 – Updated: 2026-07-21 11:08 X_Open Source
VLAI
EPSS
VEX
Title
cal.diy 6.2.0 Conferencing OAuth Callback Open Redirect via Unsigned State
Summary
cal.diy through 6.2.0 contains an open redirect vulnerability in the conferencing OAuth callback endpoint that allows attackers to redirect users to arbitrary URLs by crafting malicious state parameters. Attackers can exploit the unsigned state parameter and onErrorReturnTo field to silently redirect visitors from the trusted domain to attacker-controlled URLs for phishing attacks.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 19:27 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/calcom/cal.diy/issues/29679 | technical-descriptionexploitissue-tracking |
| https://github.com/calcom/cal.diy/pull/29681 | issue-trackingpatch |
| https://www.vulncheck.com/advisories/cal-diy-conf… | third-party-advisory |
Date Public
2026-06-30 00:00
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CVE-2026-63094 (GCVE-0-2026-63094)
Vulnerability from cvelistv5 – Published: 2026-07-17 14:22 – Updated: 2026-07-27 17:17 X_Open Source
VLAI
EPSS
VEX
Title
SigNoz < 0.134.0 SSO OAuth State Manipulation Session Token Theft
Summary
SigNoz before 0.134.0 contains an open redirect vulnerability in the SSO authentication flow that allows unauthenticated attackers to steal session tokens from any user on instances configured with Google OAuth, SAML, or OIDC. Attackers can call the unauthenticated sessions context endpoint with a ref parameter pointing to an attacker-controlled host, deliver the resulting crafted login URL to a victim, and receive the victim's access and refresh tokens when they complete SSO authentication.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 01:38 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/SigNoz/signoz/issues/11746 | technical-descriptionexploit |
| https://github.com/SigNoz/signoz/releases/tag/v0.134.0 | release-notes |
| https://github.com/SigNoz/signoz/pull/12172 | issue-tracking |
| https://github.com/SigNoz/signoz/commit/253ca7dd7… | patch |
| https://www.vulncheck.com/advisories/signoz-sso-o… | third-party-advisory |
Date Public
2026-06-16 00:00
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CVE-2026-61901 (GCVE-0-2026-61901)
Vulnerability from cvelistv5 – Published: 2026-07-20 18:33 – Updated: 2026-07-23 14:56
VLAI
EPSS
VEX
Title
Joomla Extension - hikashop.com - Open redirect in Hikashop < 6.5.2
Summary
Joomla Extension - hikashop.com - Open redirect in Hikashop < 6.5.2 - The Joomla extension Hikashop is vulnerable to an open redirect.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 19:11 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.hikashop.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| hikashop.com | Hikashop extension for Joomla |
Affected:
1.0.0-6.5.1
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CVE-2026-61451 (GCVE-0-2026-61451)
Vulnerability from cvelistv5 – Published: 2026-07-15 11:25 – Updated: 2026-07-28 13:02
VLAI
EPSS
VEX
Title
Grav before 1.0.4 Password Reset Token Poisoning via admin_base_url
Summary
The Grav API plugin (grav-plugin-api) before 1.0.4 does not validate the origin of the client-supplied admin_base_url field in the POST /api/v1/auth/forgot-password endpoint. The sanitizeHttpUrl() function only checks that the URL scheme is http/https and never verifies the host against the server's own origin, so an attacker can supply an arbitrary host. As a result, an unauthenticated attacker can cause the password reset email sent to a victim to contain a reset link pointing at an attacker-controlled server; when the victim follows the link, the valid reset token is disclosed to the attacker, enabling full account takeover. The vulnerable base URL can also be influenced via the Referer or Origin headers.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-15 12:38 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/getgrav/grav/security/advisori… | vendor-advisory |
| https://www.vulncheck.com/advisories/grav-before-… | third-party-advisory |
Impacted products
Date Public
2026-06-25 00:00
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CVE-2026-59806 (GCVE-0-2026-59806)
Vulnerability from cvelistv5 – Published: 2026-07-08 19:43 – Updated: 2026-07-09 18:18 X_Open Source
VLAI
EPSS
VEX
Title
Gradio < 6.20.0 - Open Redirect and SSRF via /gradio_api/file= endpoint
Summary
Gradio before 6.20.0 contains an open redirect and server-side request forgery vulnerability that allows attackers to redirect users to arbitrary URLs or perform client-side SSRF by supplying unvalidated HTTP/HTTPS URLs to the file_fetch() function in the /gradio_api/file= endpoint. Attackers can craft a malicious FileData response targeting internal endpoints such as cloud metadata services to retrieve sensitive credentials including EC2 IAM role credentials.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 18:18 UTC
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/gradio-app/gradio/issues/13593 | technical-descriptionexploit |
| https://github.com/gradio-app/gradio/releases/tag… | release-notes |
| https://github.com/gradio-app/gradio/pull/13596 | issue-tracking |
| https://github.com/gradio-app/gradio/commit/1c5c5… | patch |
| https://www.vulncheck.com/advisories/gradio-open-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| gradio-app | gradio |
Affected:
0 , < 6.20.0
(semver)
cpe:2.3:a:gradio_project:gradio:*:*:*:*:*:python:*:* |
Date Public
2026-07-05 00:00
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CVE-2026-59730 (GCVE-0-2026-59730)
Vulnerability from cvelistv5 – Published: 2026-07-27 20:00 – Updated: 2026-07-28 13:49
VLAI
EPSS
VEX
Title
@astrojs/node: Backslash-prefixed paths not recognized as internal by trailing-slash redirect
Summary
Astro is a web framework for content-driven websites. In versions 8.1.0 through 11.0.1, when trailingSlash: 'always' is configured, the @astrojs/node standalone server's static file handler appends a trailing slash to request paths and issues a 301 redirect. Paths beginning with /\ (slash-backslash) were not recognized as internal paths, so the handler would echo the raw path back in the Location header. Because browsers treat \ as / per the WHATWG URL specification, the resulting redirect could resolve to an external host. Preconditions for exploitation: trailingSlash: 'always' must be set (non-default; the default is 'ignore'), the request path must not have a file extension in its final segment, and an attacker must deliver the crafted link to a user. This issue has been fixed in version 11.0.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-28 13:48 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/withastro/astro/security/advis… | x_refsource_CONFIRM |
| https://github.com/withastro/astro/pull/17252 | x_refsource_MISC |
| https://github.com/withastro/astro/commit/eb6f97e… | x_refsource_MISC |
| https://github.com/withastro/astro/releases/tag/@… | x_refsource_MISC |
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CVE-2026-59717 (GCVE-0-2026-59717)
Vulnerability from cvelistv5 – Published: 2026-08-07 20:19 – Updated: 2026-08-07 21:01
VLAI
EPSS
VEX
Title
Home Assistant Companion: `homeassistant://invite` Deep Link Credential Phishing
Summary
Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.6.1, the Android Companion app is vulnerable to an open redirect. The app passes the URL fragment from a homeassistant://invite deep link into the onboarding flow without ever displaying the destination hostname. Because no screen in the invitation or onboarding flow shows the parsed server URL before onboarding commits to it, a victim has no way to distinguish a legitimate invite from a malicious one. An attacker can craft an invite so that a single tap on the legitimate-looking "Connect to my Home Assistant server" button opens their /auth/authorize endpoint in the URL-less onboarding WebView, presenting a look-alike login page that captures the victim's credentials. Since invitations are intended to onboard brand-new users, targets are especially unlikely to notice the substitution. This issue is fixed in version 2026.6.1.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 20:51 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/home-assistant/core/security/a… | x_refsource_CONFIRM |
| https://github.com/home-assistant/android/pull/6955 | x_refsource_MISC |
| https://github.com/home-assistant/android/commit/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| home-assistant | core |
Affected:
< 2026.6.1
|
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CVE-2026-59355 (GCVE-0-2026-59355)
Vulnerability from cvelistv5 – Published: 2026-08-27 06:35 – Updated: 2026-08-27 13:37
VLAI
EPSS
VEX
Title
Spring Authorization Server: Open Redirect via request_uri parameter
Summary
In versions of Spring Authorization Server 1.5.0 through 1.5.7, the authorization endpoint performs insufficient validation of the request_uri parameter. An attacker can craft a request containing an invalid request_uri paired with an unvalidated redirect_uri, which can result in an open redirect to an attacker-controlled site.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 13:37 UTC
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://spring.io/security/cve-2026-59355 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| VMware | Spring Authorization Server |
Affected:
1.5.0 , ≤ 1.5.7
(semver)
Unaffected: 1.5.8 (OSS) Unaffected: 1.5.7.1 (enterprise support only) |
{
"containers": {
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{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-59355",
"options": [
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{
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"value": "Jon Kjennbakken (Vipps MobilePay)"
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"value": "\u003cp\u003eIn versions of Spring Authorization Server 1.5.0 through 1.5.7, the authorization endpoint performs insufficient validation of the request_uri parameter. An attacker can craft a request containing an invalid request_uri paired with an unvalidated redirect_uri, which can result in an open redirect to an attacker-controlled site.\u003c/p\u003e"
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}
],
"metrics": [
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
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"description": "CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
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}
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"value": "Upgrade to Spring Authorization Server 1.5.8 (OSS) or 1.5.7.1 (Enterprise Support customers). No additional mitigation is required after upgrading."
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"time": "2026-06-09T00:00:00.000Z",
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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.