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CVE-2018-0734

Timing attack against DSA

The OpenSSL DSA signature algorithm has been shown to be vulnerable to a timing side channel attack. An attacker could use variations in the signing algorithm to recover the private key. Fixed in OpenSSL 1.1.1a (Affected 1.1.1). Fixed in OpenSSL 1.1.0j (Affected 1.1.0-1.1.0i). Fixed in OpenSSL 1.0.2q (Affected 1.0.2-1.0.2p).

CVSS 3.1 · 5.9 Medium EPSS 12.2% KEV · Not listed
Vendors
Canonical Debian Netapp and 4 more
Products
Ubuntu Linux Debian Linux Cloud Backup and 20 more
CVE-2019-17563

tomcat: Session fixation when using FORM authentication

When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability.

CVSS 3.1 · 7.5 High EPSS 10.7% KEV · Not listed
Vendors
Apache Canonical Debian and 3 more
Products
Tomcat Ubuntu Linux Debian Linux and 11 more
CVE-2026-94114

Apache Commons BCEL: Class repositories cache class files under their self-declared names, enabling cache poisoning

Symbolic name not mapping to correct class. BCEL caches attacker-controlled classes under their self-declared names without validating the requested name, allowing subsequent lookups and name-keyed verification results to refer to a different class. This issue affects Apache Commons BCEL: before 6.13.0. Users are recommended to upgrade to version 6.13.0, which fixes the issue.

CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Commons Bcel
CVE-2026-104469

YesWiki before 4.6.7 Session Fixation via Login in AuthController.php

YesWiki before 4.6.7 contains a session fixation vulnerability that allows attackers to hijack authenticated sessions because login does not regenerate the PHP session ID. Attackers who set or learn a victim's pre-authentication YesWiki-* session cookie can reuse it after login to access private content and perform actions with the victim's privileges.

CVSS 4.0 · 7.6 High EPSS < 1% KEV · Not listed
Vendors
Yeswiki
Products
Yeswiki
CVE-2026-92609

Apache Qpid Broker-J: Missing HTTP-session renewal after successful authentication

Session fixation in HTTP management authentication allows remote attackers to gain unauthorized access to an authenticated management session via reuse of a session identifier retained across successful authentication. This issue affects Apache Qpid Broker-J: through 10.1.0. Users are recommended to upgrade to version 10.1.1, which fixes the issue.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Qpid Broker-j
CVE-2026-105233

kishor-23 food-waste-management-system Login Flow login.php session fixiation

A vulnerability has been found in kishor-23 food-waste-management-system 411989e3ecb82895e53dca7865f72145f03d7d93/b3a70b2c492dc9904de5be1ad9389bd79b87f82c. This affects an unknown function of the file login.php of the component Login Flow. Such manipulation of the argument PHPSESSID leads to session fixiation. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The project was informed of the problem early through an issue report but has not responded yet.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Kishor-23
Products
Food-waste-management-system
CVE-2026-71302

Toptech TMS7 and TopHAT Session Fixation

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.

CVSS 4.0 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Toptech Systems
Products
Tms7 Tophat
CVE-2026-57179

social-auth-core has a Session Fixation issue

Python Social Auth is a social authentication/registration mechanism. Prior to version 5.0.0, the partial-pipeline resume mechanism accepted `partial_token` as a bearer credential without binding it to the browser session that created it. Applications using resumable partial pipeline steps could allow an attacker to start an authentication flow, obtain a valid partial token and verification data, and cause a victim's browser to resume that attacker-controlled flow. This could authenticate the victim's browser as the attacker's account. The issue affects applications using partial pipeline steps such as `mail_validation` or custom steps decorated with `@partial`. The issue has been fixed in version 5.0.0 by binding partial pipeline resumes to the originating browser session.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
Vendors
Python-social-auth
Products
Social-core
CVE-2026-101268

Customer session fixation

If an attacker is able to convince a victim on a specially crafted link, the victim is logged in to the attacker's customer account. If the victim does not notice this, this might lead to their order details being stored into the attacker's account. The attack only works when the event is available on a different domain than the organizer page.

CVSS 4.0 · 1.7 Low EPSS < 1% KEV · Not listed
Vendors
Pretix
Products
Pretix
CVE-2026-20263

Cisco IOS XE Software Blocks Extensible Exchange Protocol Denial of Service Vulnerability

A vulnerability in the Blocks Extensible Exchange Protocol (BEEP) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling when parsing a specific BEEP SOAP request. An attacker could exploit this vulnerability by sending a specific BEEP SOAP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.

CVSS 3.1 · 8.6 High EPSS < 1% KEV · Not listed
Vendors
Cisco
Products
Ios Xe Ios Xe Software
CVE-2026-78428

Flaw in Neuvector can result in one user receiving another user's authenticated session when multiple SSO login attempts occur concurrently

For users authenticated through SAML or OpenID Connect (OIDC), this vulnerability can result in one user receiving another user's authenticated session when multiple SSO login attempts occur concurrently

CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Go Suse
Products
Neuvector Neuvector
CVE-2026-82355

Apache Airflow: Session cookie silently overrides explicit Authorization bearer header, enabling session fixation

When a request to the Airflow core API carries both a session cookie and an explicit `Authorization: Bearer` token, Airflow resolves the caller from the cookie and ignores the bearer token, inverting the intended precedence of bearer over cookie. The request then executes -- and is recorded in the audit log -- as the cookie's principal rather than the identity the client explicitly presented. Only Apache Airflow 3.3.0 and 3.3.1 are affected. Earlier releases do not contain the code path that caches the cookie-derived user, and are not vulnerable. Exploiting this requires an attacker to first place a valid session cookie of their own into the victim's browser or client: for example by cookie tossing from a sibling subdomain, through cross-site scripting in a separate application sharing a parent domain, or via a shared workstation. Deployments that host the Airflow UI on a domain shared with other applications are therefore the most exposed; a deployment on a dedicated domain with no co-hosted applications is not reachable this way. The consequence is principal confusion and misattributed audit records rather than a direct privilege escalation. Users of 3.3.0 or 3.3.1 should upgrade to Apache Airflow 3.3.2 or later, which resolves the caller from the explicitly supplied credential whenever one is present.

CVSS 3.1 · 4.2 Medium EPSS < 1% KEV · Not listed
Vendors
Apache
Products
Airflow
CVE-2026-95828

Mstfakts College-Management-System Authentication server.php session_start session fixiation

A vulnerability was determined in Mstfakts College-Management-System. This affects the function session_start of the file Front-end/server.php of the component Authentication. Executing a manipulation can lead to session fixiation. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Mstfakts
Products
College-management-system
CVE-2026-79312

python-webpy: webpy: Missing session ID rotation after authentication leads to session fixation

webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Webpy
Products
Webpy
CVE-2026-92984

HUBzero CMS through 2.2.32 Session Fixation via Query-String Session Identifier

HUBzero CMS through 2.2.32 accepts session identifiers from query strings and request variables instead of cookies alone, allowing unauthenticated attackers to fixate victim sessions. Attackers can obtain a valid session identifier, send victims a crafted link containing it, and replay the identifier after the victim authenticates to hijack their account and access.

CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Vendors
Hubzero
Products
Hubzero-cms
CVE-2026-81181

SysReptor: Session Fixation in Password-Protected Shared Notes

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.

CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
Vendors
Syslifters
Products
Sysreptor
CVE-2026-61687

hatchet - Unauthenticated OAuth state CSRF / login-CSRF via empty-state collision in ValidateOAuthState

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.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Hatchet-dev
Products
Hatchet
CVE-2026-75171

Remote Privilege Escalation via Session Cookie Manipulation in HubCore v.14.1.1

An issue in HubCore v.14.1.1 allows a remote attacker to escalate privileges via the HUBCOREID session cookie handling component.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Vendors
Hubcore
Products
Hubcore
CVE-2026-86688

Session id is not renewed on authentication in ash_authentication, allowing session fixation

Session Fixation vulnerability in team-alembic ash_authentication allows an attacker who can plant a session identifier in a victim's browser to hold an authenticated session once that victim signs in. AshAuthentication.Plug.Helpers.store_in_session/2 writes the authenticated subject into the existing session with Plug.Conn.put_session/3 and never calls Plug.Conn.configure_session(renew: true), so the identifier the visitor arrived with carries into their authenticated session. Every authentication event reaches this one function: the default success/4 injected by AshAuthentication.Phoenix.Controller.__using__/1, the AuthController emitted by mix ash_authentication_phoenix.install, and remember-me auto-login. AshAuthentication.Phoenix.Plug.store_in_session/2 is a defdelegate to it. Logout does not close the window either, because clear_session/2 ends with Plug.Conn.clear_session/1, which clears session contents but leaves the identifier intact, so a planted identifier survives a logout-then-login cycle. This issue affects ash_authentication: from 0.2.0 before 4.15.0 and from 5.0.0-rc.0 before 5.0.0-rc.14.

CVSS 4.0 · 7.4 High EPSS < 1% KEV · Not listed
Vendors
Team-alembic
Products
Ash Authentication
CVE-2026-5598

Non-constant time comparisons risk private key leakage in FrodoKEM.

Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). This vulnerability is associated with program files FrodoEngine.Java. This issue affects BC-JAVA: from 1.71 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.

CVSS 4.0 · 8.9 High EPSS 1.2% KEV · Not listed
Vendors
Bouncycastle
Products
Bc-java