Common Weakness Enumeration

CWE-565

Allowed

Reliance on Cookies without Validation and Integrity Checking

Abstraction: Base · Status: Incomplete

The product relies on the existence or values of cookies when performing security-critical operations, but it does not properly ensure that the setting is valid for the associated user.

40 vulnerabilities reference this CWE, most recent first.

CVE-2026-119128 (GCVE-0-2026-119128)

Vulnerability from cvelistv5 – Published: 2026-10-29 15:58 – Updated: 2026-11-03 15:45
VLAI
Title
ZITADEL 4.0.0 before 4.19.5 Login V2 Account Takeover via Forgeable verificationCheck Cookie
Summary
ZITADEL 4.0.0 before 4.19.5 contains an authentication bypass vulnerability in the Login V2 UI that allows unauthenticated attackers to set the first credential of users lacking any authentication method. Attackers can compute a valid verificationCheck cookie from the user ID and browser fingerprint to set a password, register a passkey, or link an identity provider, taking over the account.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 15:43 UTC
CWE
  • CWE-565 - Reliance on Cookies without Validation and Integrity Checking
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
zitadel zitadel Affected: 4.0.0 , < 4.19.5 (semver)
Unaffected: 4.19.5 (semver)
    cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-15 00:00
Show details on NVD website

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CVE-2026-118661 (GCVE-0-2026-118661)

Vulnerability from cvelistv5 – Published: 2026-10-28 20:30 – Updated: 2026-11-03 13:33
VLAI
Title
Happy DOM: Cookie scope forgery: no DNS-label boundary on Domain= matching , attacker origin sets victim cookies
Summary
Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. Prior to 20.14.6, Happy DOM's CookieContainer in src/cookie/CookieContainer.ts does not correctly validate or match Domain cookie attributes. It can accept a Domain unrelated to the origin setting the cookie, including a public suffix, and separately treats an unrelated suffix-sharing hostname as a match because cookieMatchesURL does not enforce a DNS-label boundary. In server-side rendering and prerendering applications that contact attacker-controlled origins and then make requests to a victim origin, these behaviors can plant and deliver a forged cookie, enabling cookie injection or session fixation. This issue is fixed in version 20.14.6.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 13:33 UTC
CWE
  • CWE-565 - Reliance on Cookies without Validation and Integrity Checking
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
capricorn86 happy-dom Affected: < 20.14.6
Create a notification for this product.
Show details on NVD website

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CVE-2026-112352 (GCVE-0-2026-112352)

Vulnerability from cvelistv5 – Published: 2026-10-27 19:43 – Updated: 2026-10-28 16:13
VLAI
Title
Sunhillo SureLine Authentication Bypass via Session Cookie
Summary
Sunhillo SureLine before 9.1.5 contains an authentication bypass vulnerability that allows an unauthenticated remote attacker to impersonate any user with an active web session by forging a session cookie containing only a cleartext username with no random identifier or integrity protection. Attackers can guess default account names such as Admin or sftp_user and submit a forged username cookie to satisfy the login check in checkLogin (libwebcmn.so) and networkDiag.cgi, chaining into root command execution.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-28 14:58 UTC
CWE
  • CWE-565 - Reliance on Cookies without Validation and Integrity Checking
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
Sunhillo Corporation SureLine Affected: 8.0.0 , < 9.1.5 (semver)
Create a notification for this product.
Date Public
2026-10-27 00:00
Show details on NVD website

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CVE-2026-111749 (GCVE-0-2026-111749)

Vulnerability from cvelistv5 – Published: 2026-10-19 17:04 – Updated: 2026-10-22 20:52
VLAI
Title
AIOHTTP: Cookie from subdomain can remove Host-Only Scope from existing cookies
Summary
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, Host-Only scope on an existing parent-domain cookie can be removed by a subdomain. A user who accesses an untrusted subdomain can consequently have host-only protections stripped from cookies, although impact is limited when applications do not reflect those cookies to a browser. This issue is fixed in version 3.14.4.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-22 20:52 UTC
CWE
  • CWE-565 - Reliance on Cookies without Validation and Integrity Checking
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
aio-libs aiohttp Affected: < 3.14.4
Create a notification for this product.
Show details on NVD website

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CVE-2026-101287 (GCVE-0-2026-101287)

Vulnerability from cvelistv5 – Published: 2026-10-15 09:00 – Updated: 2026-10-15 13:48
VLAI
Title
Authentication bypass in Stela by Diaple Networking
Summary
Authentication bypass vulnerability in Stela, versions prior to 1.60.1, due to the use of a cookie named “authProcess” without validating its integrity. The application stores the user identifier (userId) and the status of the authentication process (validSteps) in this cookie and relies on these values—which can be modified by the client—to complete the login process. A remote attacker, without valid credentials or interaction from other users, could manipulate the cookie to bypass authentication checks and impersonate any account, including one with SUPER_ADMIN privileges. This would allow the attacker to obtain a valid JWT token with administrative privileges and compromise the confidentiality and integrity of the application.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 13:48 UTC
CWE
  • CWE-565 - Reliance on cookies without validation and integrity checking
Assigner
INCIBE CNA
Impacted products
Vendor Product Version
Diaple Stela Affected: versions prior to 1.60.1
    cpe:2.3:a:diaple:stela:versions_prior_to_1.60.1:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-15 08:57
Show details on NVD website

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CVE-2026-85181 (GCVE-0-2026-85181)

Vulnerability from cvelistv5 – Published: 2026-09-03 14:12 – Updated: 2026-09-24 14:20
VLAI
Title
CAT through 3.1.0 Session Cookie Forgery via Unkeyed hashCode Checksum
Summary
CAT uses Java String.hashCode as the sole integrity check for session cookies without server-side keying, allowing attackers to forge valid checksums offline. Attackers can set the x-forwarded-for header to bypass IP binding validation and create admin sessions with full configuration access.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 15:03 UTC
CWE
  • CWE-565 - Reliance on Cookies without Validation and Integrity Checking
Assigner
VulnCheck CNA
Impacted products
Vendor Product Version
dianping cat Affected: 0 , ≤ 3.1.0 (semver)
Create a notification for this product.
Date Public
2026-07-05 00:00
Show details on NVD website

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CVE-2026-76186 (GCVE-0-2026-76186)

Vulnerability from cvelistv5 – Published: 2026-09-16 09:09 – Updated: 2026-09-17 19:22
VLAI
Title
Apache Airflow Keycloak provider: Keycloak token cookies not bound to Airflow session identity
Summary
Apache Airflow Keycloak provider: from Airflow 3.3 the Keycloak auth manager takes a user's identity from the signed Airflow session token but takes the Keycloak access and refresh tokens used for every authorization decision from separate, unauthenticated cookies, and never checks that the two describe the same subject. A user who holds any valid Airflow login of their own, together with another subject's Keycloak access or refresh token obtained out of band, can pair the two: Airflow then authorizes requests with the foreign token's privileges while the session identity, audit log and cache keys continue to name the attacker's own account. The refresh path re-issues an Airflow session token for the original identity carrying the foreign tokens, so the mismatched pairing survives across sessions. Affects deployments running Airflow 3.3 or later with the Keycloak auth manager. Earlier versions carried the Keycloak tokens inside the signed session token, so the binding existed and was lost when they moved into separate cookies. Users of apache-airflow-providers-keycloak are recommended to upgrade to version 0.10.0 or later, which binds the cookie-supplied tokens to the session identity.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 19:22 UTC
CWE
  • CWE-565 - Reliance on Cookies without Validation and Integrity Checking in a Security Decision
Assigner
apache CNA
Impacted products
Show details on NVD website

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CVE-2026-75757 (GCVE-0-2026-75757)

Vulnerability from cvelistv5 – Published: 2026-08-31 02:20 – Updated: 2026-08-31 14:50
VLAI
Title
AshAdmin cookie reader matches names by substring, enabling actor/session shadowing from a sibling subdomain
Summary
Reliance on Cookies without Validation and Integrity Checking vulnerability in ash-project ash_admin lets an attacker who controls a sibling subdomain rebind an admin's session to a different actor, tenant, or authorization mode. AshAdmin's client JavaScript read its state cookies (tenant, actor_resource, actor_primary_key, actor_action, actor_domain, actor_authorizing, actor_paused) by matching the cookie name with an unanchored regular expression (new RegExp(name + "=([^;]+)")) against the whole document.cookie. Any cookie whose name merely ends with the requested name therefore matches, and whichever is serialized first wins. Because cookies are shared across a registrable domain, a compromised sibling subdomain can set a shadowing cookie (for example xactor_authorizing) with Domain=.example.com that flows unvalidated into the admin's LiveSocket connect params. The fix matches cookie names by exact equality. This issue affects ash_admin: from 0.9.1 before 1.3.1.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 14:50 UTC
CWE
  • CWE-565 - Reliance on Cookies without Validation and Integrity Checking
Assigner
EEF CNA
Impacted products
Vendor Product Version
ash-project ash_admin Affected: 0.9.1 , < 1.3.1 (semver)
    cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*
Create a notification for this product.
ash-project ash_admin Affected: 77a43cc4fa04cb59c38fc434568a35a38ecb995a , < e93a3408a85035e1f90275d02bc2470c96095e56 (git)
    cpe:2.3:a:ash-project:ash_admin:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-69215 (GCVE-0-2026-69215)

Vulnerability from cvelistv5 – Published: 2026-09-15 19:17 – Updated: 2026-09-16 18:36
VLAI
Title
Http4s: CookieJar middleware matches by substring, leaking cookies cross-origin
Summary
Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The CookieJar client middleware uses unanchored substring checks instead of RFC 6265 domain and path matching when deciding whether to attach a stored cookie. A cookie for example.com can consequently be sent to an attacker-controlled hostname such as evilexample.com when an application using the same jar makes an attacker-influenced outbound request. This exposes session or authentication cookies and can enable hijacking of the application’s outbound sessions. This issue is fixed in versions 0.23.35 and 1.0.0-M47.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 18:18 UTC
CWE
  • CWE-565 - Reliance on Cookies without Validation and Integrity Checking
  • CWE-1275 - Sensitive Cookie with Improper SameSite Attribute
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
http4s http4s Affected: < 0.23.35
Affected: >= 1.0.0-M1, < 1.0.0-M47
Create a notification for this product.
Show details on NVD website

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CVE-2026-69214 (GCVE-0-2026-69214)

Vulnerability from cvelistv5 – Published: 2026-09-15 19:04 – Updated: 2026-09-16 18:37
VLAI
Title
Http4s: CookieJar middleware accepts arbitrary Set-Cookie domain
Summary
Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, The CookieJar client middleware stores a response cookie’s Domain attribute without checking that it domain-matches the host that supplied the cookie or rejecting public suffixes. A malicious or compromised server contacted through the same CookieJar can plant a cookie for another domain, and the jar later sends that cookie to the victim domain, enabling session fixation or overwriting security-sensitive cookies. The patch validates the Set-Cookie domain against the response origin, although public-suffix rejection remains unimplemented. This issue is fixed in versions 0.23.35 and 1.0.0-M47.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 18:18 UTC
CWE
  • CWE-384 - Session Fixation
  • CWE-565 - Reliance on Cookies without Validation and Integrity Checking
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
http4s http4s Affected: < 0.23.35
Affected: >= 1.0.0-M1, < 1.0.0-M47
Create a notification for this product.
Show details on NVD website

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            "availabilityImpact": "NONE",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-384",
              "description": "CWE-384: Session Fixation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-565",
              "description": "CWE-565: Reliance on Cookies without Validation and Integrity Checking",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-15T19:04:05.469Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/http4s/http4s/security/advisories/GHSA-wv64-j4fq-5f9x",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/http4s/http4s/security/advisories/GHSA-wv64-j4fq-5f9x"
        },
        {
          "name": "https://github.com/http4s/http4s/commit/87535f7288f3baaf6736e2735087e473762b5b2f",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/http4s/http4s/commit/87535f7288f3baaf6736e2735087e473762b5b2f"
        },
        {
          "name": "https://github.com/http4s/http4s/releases/tag/v0.23.35",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/http4s/http4s/releases/tag/v0.23.35"
        },
        {
          "name": "https://github.com/http4s/http4s/releases/tag/v1.0.0-M47",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/http4s/http4s/releases/tag/v1.0.0-M47"
        }
      ],
      "source": {
        "advisory": "GHSA-wv64-j4fq-5f9x",
        "discovery": "UNKNOWN"
      },
      "title": "Http4s: CookieJar middleware accepts arbitrary Set-Cookie domain"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-69214",
    "datePublished": "2026-09-15T19:04:05.469Z",
    "dateReserved": "2026-08-03T16:57:50.125Z",
    "dateUpdated": "2026-09-16T18:37:05.666Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Mitigation
Architecture and Design

Avoid using cookie data for a security-related decision.

Mitigation
Implementation

Perform thorough input validation (i.e.: server side validation) on the cookie data if you're going to use it for a security related decision.

Mitigation
Architecture and Design

Add integrity checks to detect tampering.

Mitigation
Architecture and Design

Protect critical cookies from replay attacks, since cross-site scripting or other attacks may allow attackers to steal a strongly-encrypted cookie that also passes integrity checks. This mitigation applies to cookies that should only be valid during a single transaction or session. By enforcing timeouts, you may limit the scope of an attack. As part of your integrity check, use an unpredictable, server-side value that is not exposed to the client.

CAPEC-226: Session Credential Falsification through Manipulation

An attacker manipulates an existing credential in order to gain access to a target application. Session credentials allow users to identify themselves to a service after an initial authentication without needing to resend the authentication information (usually a username and password) with every message. An attacker may be able to manipulate a credential sniffed from an existing connection in order to gain access to a target server.

CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies

This attack relies on the use of HTTP Cookies to store credentials, state information and other critical data on client systems. There are several different forms of this attack. The first form of this attack involves accessing HTTP Cookies to mine for potentially sensitive data contained therein. The second form involves intercepting this data as it is transmitted from client to server. This intercepted information is then used by the adversary to impersonate the remote user/session. The third form is when the cookie's content is modified by the adversary before it is sent back to the server. Here the adversary seeks to convince the target server to operate on this falsified information.

CAPEC-39: Manipulating Opaque Client-based Data Tokens

In circumstances where an application holds important data client-side in tokens (cookies, URLs, data files, and so forth) that data can be manipulated. If client or server-side application components reinterpret that data as authentication tokens or data (such as store item pricing or wallet information) then even opaquely manipulating that data may bear fruit for an Attacker. In this pattern an attacker undermines the assumption that client side tokens have been adequately protected from tampering through use of encryption or obfuscation.