Common Weakness Enumeration

CWE-384

Allowed

Session Fixation

Abstraction: Compound · Status: Incomplete

API response cwe.mitre.org

Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.

598 vulnerabilities reference this CWE, most recent first.

CVE-2026-81181 (GCVE-0-2026-81181)

Vulnerability from cvelistv5 – Published: 2026-09-18 17:48 – Updated: 2026-09-21 20:48
VLAI
Title
SysReptor: Session Fixation in Password-Protected Shared Notes
Summary
SysReptor is a fully customizable pentest reporting platform. Prior to 2026.68, the password authentication flow for protected shared notes does not rotate the session identifier after successful authentication, allowing session fixation. An attacker who can obtain an unauthenticated SysReptor session cookie, place it in a victim's browser, and know the shared-note URL where the victim authenticates can reuse the fixed session after the victim enters the correct password and access that shared note. The main SysReptor login flow is not affected. This issue is fixed in version 2026.68.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:30 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Syslifters sysreptor Affected: < 2026.68
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-77614 (GCVE-0-2026-77614)

Vulnerability from cvelistv5 – Published: 2026-09-17 14:23 – Updated: 2026-09-17 15:33
VLAI
Title
Opencast: Session fixation in login enables account takeover via crafted link
Summary
Opencast is a free, open-source platform to support the management of educational audio and video content. Prior to versions 19.7 and 20.2, the default security configuration in etc/security/mh_default_org.xml accepts a client-selected JSESSIONID from the ;jsessionid= URL path parameter and does not replace it when the victim logs in. An unauthenticated attacker can send a crafted link to a victim whose browser has no active Opencast session cookie, wait for the victim to authenticate, and then reuse the known identifier as the victim's authenticated session. This can expose the victim's data and actions and can produce full administrative account takeover when the victim is an administrator. This issue is fixed in versions 19.7 and 20.2.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 15:32 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
opencast opencast Affected: < 19.7
Affected: >= 20.0, < 20.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-76196 (GCVE-0-2026-76196)

Vulnerability from cvelistv5 – Published: 2026-09-08 17:27 – Updated: 2026-09-09 09:54
VLAI
Title
Photoshop Mobile | Session Fixation (CWE-384)
Summary
Photoshop Mobile is affected by a Session Fixation vulnerability that could result in privilege escalation. An attacker could leverage this vulnerability to gain access to sensitive resources. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue requires user interaction in that a victim must interact with a malicious webpage. Scope is changed.
Severity
7.4 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 04:27 UTC
CWE
  • CWE-384 - Session Fixation (CWE-384)
Assigner
References
Impacted products
Vendor Product Version
Adobe Photoshop Android Affected: 0 , ≤ 1.6.0.2294 (custom)
Unaffected: 1.6.0.2295 (custom)
Create a notification for this product.
Adobe Photoshop Android Affected: 0 , ≤ 1.6.0.2299 (custom)
Unaffected: 1.7.0.2302 (custom)
Create a notification for this product.
Date Public
2026-09-08 17:00
Show details on NVD website
To clipboard 

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CVE-2026-71302 (GCVE-0-2026-71302)

Vulnerability from cvelistv5 – Published: 2026-09-29 21:41 – Updated: 2026-09-30 15:28
VLAI
Title
Toptech TMS7 and TopHAT Session Fixation
Summary
The application accepts user-supplied session identifiers and does not regenerate the session ID after authentication. This allows an attacker to predefine a session ID and reuse it after victim authentication, resulting in session takeover.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
7.5 (High)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:00 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Toptech Systems TMS7 Affected: 7.6.3
Unaffected: 7.8
Create a notification for this product.
Toptech Systems TopHAT Affected: 7.6.3
Unaffected: 7.8
Create a notification for this product.
Credits
Sachin Shetty and Roy Duisters of Shell CyberDefence reported this vulnerability to Toptech and CISA.
Show details on NVD website
To clipboard 

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CVE-2026-70594 (GCVE-0-2026-70594)

Vulnerability from cvelistv5 – Published: 2026-08-04 21:53 – Updated: 2026-08-05 14:05
VLAI
Title
Ghost: Session Fixation in Ghost Admin
Summary
Ghost is a Node.js content management system. From 2.2.0 until 6.54.1, Ghost Admin did not invalidate existing sessions on login which could have allowed for session fixation attacks. Successful exploitation would have required another vulnerability on the same domain where Ghost Admin was hosted. This issue is fixed in version 6.54.1.
Severity
6.7 (Medium)
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 14:04 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
TryGhost Ghost Affected: >= 2.2.0, < 6.54.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-69245 (GCVE-0-2026-69245)

Vulnerability from cvelistv5 – Published: 2026-08-03 21:05 – Updated: 2026-08-04 15:04
VLAI
Title
Guzzle: Noncanonical cookie domain keeps subdomain scope
Summary
Guzzle is an extensible PHP HTTP client. Prior to 7.15.2 and 8.0.1, SetCookie::matchesDomain() gives every subdomain of a cookie Domain that cookie unless SetCookie::matchesDomain() recognizes the Domain as an IP literal or a numeric host, and the decision comes from the domain's own text, so two spellings a transport reads as an address keep subdomain scope. Hexadecimal and mixed-base forms such as 0x7f000001 and 0177.0.0.0x1 go unrecognized while libcurl 8.21.0 reads both as 127.0.0.1. A percent-escaped Domain keeps that scope on both branches because percent-decoding sits above numeric parsing, so 192.168.0.%31 and 127.0.0.1%2e are registered names in the URI grammar rather than address literals, and no numeric rule in any base classifies them, while libcurl decodes the host before resolving and reads them as 192.168.0.1 and 127.0.0.1. A cookie stored for Domain=0x7f000001 is placed in the Cookie header of a request to evil.0x7f000001, disclosing a session identifier or token to a host that is not that address, and a response from evil.0x7f000001 setting Domain=0x7f000001 is accepted into the jar and replayed to the address, so a server answering for the look-alike name can fix a session or set application state. Exploitation requires the application to enable cookie support, address an origin by one of these spellings, and contact a host whose name ends in that spelling. This issue is fixed in versions 7.15.2 and 8.0.1.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 14:28 UTC
CWE
  • CWE-180 - Incorrect Behavior Order: Validate Before Canonicalize
  • CWE-346 - Origin Validation Error
  • CWE-384 - Session Fixation
Assigner
References
Impacted products
Vendor Product Version
guzzle guzzle Affected: < 7.15.2
Affected: >= 8.0.0, < 8.0.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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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.
Severity
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
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
References
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
To clipboard 

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CVE-2026-64857 (GCVE-0-2026-64857)

Vulnerability from cvelistv5 – Published: 2026-09-09 13:42 – Updated: 2026-09-09 14:04
VLAI
Title
tirreno has Session Fixation in Login Authentication
Summary
tirreno, a security framework, has a session fixation issue in versions prior to 0.10.0. During authentication, tirreno validates the user's credentials and establishes the authenticated session, but it does not call `session_regenerate_id()` afterward. As a result, the session identifier is not rotated on login, it stays the same before and after authentication. An attacker able to fix a known session identifier in a victim's browser (for example through a network man-in-the-middle position, or a separate cross-site scripting or subdomain cookie-injection issue) could then gain access to the victim's authenticated session. The issue is fixed in v0.10.0. The session identifier is now regenerated on successful authentication, and the previous session is destroyed. There is no configuration-level workaround.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 14:03 UTC
CWE
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-61687 (GCVE-0-2026-61687)

Vulnerability from cvelistv5 – Published: 2026-09-21 15:45 – Updated: 2026-09-21 20:45
VLAI
Title
hatchet - Unauthenticated OAuth state CSRF / login-CSRF via empty-state collision in ValidateOAuthState
Summary
Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.91.1, ValidateOAuthState clears the oauth_state_ session value to an empty string after a successful OAuth callback and later accepts an empty state parameter as equal, allowing an unauthenticated attacker to bind a victim's Hatchet session to an attacker-controlled OAuth identity. Exploitation requires the victim to have completed an OAuth flow in the current session and the deployment to enable auth.google.enabled, auth.github.enabled, or the Slack integration. This issue is fixed in version 0.91.1.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 19:40 UTC
CWE
  • CWE-287 - Improper Authentication
  • CWE-352 - Cross-Site Request Forgery (CSRF)
  • CWE-384 - Session Fixation
  • CWE-1275 - Sensitive Cookie with Improper SameSite Attribute
Assigner
References
Impacted products
Vendor Product Version
hatchet-dev hatchet Affected: < 0.91.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-61592 (GCVE-0-2026-61592)

Vulnerability from cvelistv5 – Published: 2026-09-16 21:53 – Updated: 2026-09-17 19:23
VLAI
Title
djust: SSE sessions are not bound to the authenticated user; the client-chosen session_id is the sole authorization capability (session hijack)
Summary
djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to version 1.0.7, SSE sessions were keyed solely by a client-chosen `session_id` with no binding to the authenticated user — a control the WebSocket transport has but that was dropped on SSE. An attacker who learns (or a victim who leaks) a `session_id` could connect to the message endpoint and dispatch event handlers that execute with the victim's identity and state. This is fixed in djust 1.0.7. Each SSE session is bound to its owning principal at creation and cross-principal access is rejected; SSE session creation is additionally capped per principal. As a workaround, disable the SSE transport.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 17:15 UTC
CWE
  • CWE-384 - Session Fixation
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version
djust-org djust Affected: < 1.0.7
Create a notification for this product.
Show details on NVD website
To clipboard 

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Mitigation
Architecture and Design

Invalidate any existing session identifiers prior to authorizing a new user session.

Mitigation
Architecture and Design

For platforms such as ASP that do not generate new values for sessionid cookies, utilize a secondary cookie. In this approach, set a secondary cookie on the user's browser to a random value and set a session variable to the same value. If the session variable and the cookie value ever don't match, invalidate the session, and force the user to log on again.

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-196: Session Credential Falsification through Forging

An attacker creates a false but functional session credential in order to gain or usurp access to a service. 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. If an attacker is able to forge valid session credentials they may be able to bypass authentication or piggy-back off some other authenticated user's session. This attack differs from Reuse of Session IDs and Session Sidejacking attacks in that in the latter attacks an attacker uses a previous or existing credential without modification while, in a forging attack, the attacker must create their own credential, although it may be based on previously observed credentials.

CAPEC-21: Exploitation of Trusted Identifiers

An adversary guesses, obtains, or "rides" a trusted identifier (e.g. session ID, resource ID, cookie, etc.) to perform authorized actions under the guise of an authenticated user or service.

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.

CAPEC-59: Session Credential Falsification through Prediction

This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

CAPEC-60: Reusing Session IDs (aka Session Replay)

This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.

CAPEC-61: Session Fixation

The attacker induces a client to establish a session with the target software using a session identifier provided by the attacker. Once the user successfully authenticates to the target software, the attacker uses the (now privileged) session identifier in their own transactions. This attack leverages the fact that the target software either relies on client-generated session identifiers or maintains the same session identifiers after privilege elevation.

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