Security Bulletin: spring-web-6.2.18.jar (Publicly disclosed vulnerability found by Scanner)

Summary Multiple Spring Framework spring-web vulnerabilities affecting 6.2.0–6.2.18: session fixation via compromised subdomain CVE-2026-41839, WebFlux multipart DoS CVE-2026-41840, XSS via incorrect JavaScriptUtils.javaScriptEscape escaping CVE-2026-41845, multipart request smuggling in Spring...

Session Fixation

Overview org.opencastproject:base is a free and open source solution for automated video capture and distribution at scale. Affected versions of this package are vulnerable to Session Fixation via URL-based jsessionid handling in the Spring Security HTTP configuration in...

CVE-2026-92984

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...

CVE-2026-77614

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/mhdefaultorg.xml accepts a client-selected JSESSIONID from the ;jsessionid= URL path parameter and does no...

CVE-2026-85077

A flaw was found in Sanic. The HTTP/1.1 response pipeline does not properly validate carriage-return or line-feed characters in response header names and values. This allows applications that place attacker-controlled data in response headers, filenames, or cookie attributes to inject additional...

EUVD-2026-81626

Sanic is an opensource python web server/framework. Prior to version 24.12.1, and in version 25.12.0, the HTTP/1.1 response pipeline in sanic/response/types.py serializes response header names and values without rejecting carriage-return or line-feed characters. Applications that place...

CVE-2026-77614 Opencast: Session fixation in login enables account takeover via crafted link

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/mhdefaultorg.xml accepts a client-selected JSESSIONID from the ;jsessionid= URL path parameter and does no...

CVE-2026-77614

Opencast , an open-source platform for managing educational audio and video content, is vulnerable to session fixation 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 paramet...

EUVD-2026-81625

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/mhdefaultorg.xml accepts a client-selected JSESSIONID from the ;jsessionid= URL path parameter and does no...

CVE-2026-77614 Opencast: Session fixation in login enables account takeover via crafted link

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/mhdefaultorg.xml accepts a client-selected JSESSIONID from the ;jsessionid= URL path parameter and does no...

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...

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...

EUVD-2026-81621

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...

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...

CVE-2026-92984

HUBzero CMS through 2.2.32 is vulnerable to session fixation because its session manager accepts session identifiers from query strings and request variables in addition to cookies (see Manager.php L123-132 ). An unauthenticated attacker can obtain a valid session ID, embed it in a crafted link s...

keycloak-services: keycloak-services: OIDC redirect_uri fragment bypass in HTTP parameter pollution check

A flaw was found in the keycloak-services component of Keycloak, which handles OpenID Connect OIDC authentication flows. The issue occurs because the security check designed to prevent HTTP parameter pollution only inspects the query portion of a redirect URL and ignores the fragment portion. Whe...

Session Fixation

Overview Affected versions of this package are vulnerable to Session Fixation through the CookieJar middleware accepting and storing a response cookie's Domain attribute without verifying that it matches the host that supplied the cookie or rejecting public suffixes. An attacker can cause cookies...

Session Fixation

Overview Affected versions of this package are vulnerable to Session Fixation through the CookieJar middleware accepting and storing a response cookie's Domain attribute without verifying that it matches the host that supplied the cookie or rejecting public suffixes. An attacker can cause cookies...

Session Fixation

Overview Affected versions of this package are vulnerable to Session Fixation through the CookieJar middleware accepting and storing a response cookie's Domain attribute without verifying that it matches the host that supplied the cookie or rejecting public suffixes. An attacker can cause cookies...

Http4s: CookieJar middleware accepts arbitrary Set-Cookie domain

When processing a Set-Cookie from a response, the CookieJar client middleware trusts the server-supplied Domain attribute verbatim, with no check that it domain-matches the host that sent the cookie RFC6265 §5.3 step 6 and no public suffix check. A malicious or compromised server can therefore...