Important: Red Hat Security Advisory: acl security update

An update for acl is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for ea...

PrintNightmare

Critical Vulnerability PrintNightmare CVE-2021-1675, CVE-2021-34527 Currently no solution from Microsoft yet as of 02.07.2021 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34527 Affects all operating system versions server and client Options Disable Print Spooler Adjust ACL Event...

RHEL 10 : acl (RHSA-2026:64805)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:64805 advisory. Access Control Lists ACLs are used to define fine-grained discretionary access rights for files and directories. The acl packages contain the getfa...

Reset-inetpub

Reset inetpub This script restores the %SYSTEMDRIVE%\inetpub folder and its default security permissions, which are necessary as a mitigation for CVE-2025-21204 following the KB5055523 Windows update. It's intended for users who may have deleted this folder before understanding its security purpo...

CVE-2026-86451

Affected versions of MISP allow authenticated users to retrieve object-reference records by UUID through EventGraphTool::getreferencedata without first checking whether the requester is authorized to view the object the reference belongs to. The vulnerable code queried ObjectReference.uuid direct...

CVE-2026-86418

MISP (≤2.5.45) exposes organisation metadata (ID, UUID, name) through the dashboard organisation picker endpoint without applying the same visibility restrictions enforced by the normal organisation index. When Security.hide_organisation_index_from_users was enabled, normal enumeration was restri...

CVE-2026-86418 MISP Dashboard Organisation Picker Exposes Hidden Organisation Metadata to Unauthorized Users

Affected versions of MISP expose organisation metadata through the dashboard organisation picker without applying the same visibility restrictions enforced by the normal organisation index and per-organisation view. The affected endpoint returned fields including: organisation ID; UUID; name. Whe...

CVE-2026-86418 MISP Dashboard Organisation Picker Exposes Hidden Organisation Metadata to Unauthorized Users

Affected versions of MISP expose organisation metadata through the dashboard organisation picker without applying the same visibility restrictions enforced by the normal organisation index and per-organisation view. The affected endpoint returned fields including: organisation ID; UUID; name. Whe...

CVE-2026-86347

Affected versions of MISP allow any authenticated user to access TemplatesController::uploadFile because the ACL entry for templates/uploadFile used the wildcard . This bypasses the intended role restrictions applied to neighboring template-management operations. The upload handler accepts...

CVE-2026-86347 MISP Missing Authorization on Template File Upload Allows Authenticated Disk Exhaustion

Affected versions of MISP allow any authenticated user to access TemplatesController::uploadFile because the ACL entry for templates/uploadFile used the wildcard . This bypasses the intended role restrictions applied to neighboring template-management operations. The upload handler accepts...

EUVD-2026-72322

Affected versions of MISP allow any authenticated user to access TemplatesController::uploadFile because the ACL entry for templates/uploadFile used the wildcard . This bypasses the intended role restrictions applied to neighboring template-management operations. The upload handler accepts...

CVE-2026-86347

MISP is affected by a missing authorization flaw in the TemplatesController::uploadFile() action. The ACL entry for templates/uploadFile used the wildcard * instead of the intended perm_add role restriction, allowing any authenticated user—including low-privileged or read-only users—to repeatedly...

CVE-2026-86347 MISP Missing Authorization on Template File Upload Allows Authenticated Disk Exhaustion

Affected versions of MISP allow any authenticated user to access TemplatesController::uploadFile because the ACL entry for templates/uploadFile used the wildcard . This bypasses the intended role restrictions applied to neighboring template-management operations. The upload handler accepts...

CVE-2026-53799

A symlink race condition in rsync allows a local attacker to achieve privilege escalation. By substituting a symlink at a predictable destination path between a file write and the application of access control lists ACLs or extended attributes xattrs, an attacker can redirect these permissions to...

CVE-2026-86342

MISP versions ≤ 2.5.45 contain improper authorization checks in the freetext feed preview functionality. Correlation lookups queried attributes from events without applying the requesting user's ACL, exposing restricted event correlations and associated information to users lacking access. The sa...

CVE-2026-86342 MISP Freetext Feed Preview Improper Authorization Exposes Restricted Event and Feed Information

Affected versions of MISP contain improper authorization checks in the freetext feed preview functionality. The preview performed correlation lookups against attributes from events without applying the requesting user's ACL, allowing restricted event correlations and associated event information ...

PT-2026-86669

Affected versions of MISP allow any authenticated user to access TemplatesController::uploadFile because the ACL entry for templates/uploadFile used the wildcard . This bypasses the intended role restrictions applied to neighboring template-management operations. The upload handler accepts...

PT-2026-86768

Affected versions of MISP expose organisation metadata through the dashboard organisation picker without applying the same visibility restrictions enforced by the normal organisation index and per-organisation view. The affected endpoint returned fields including: organisation ID; UUID; name. Whe...

PT-2026-86738

Incorrect Authorization CWE-863 in Kibana Entity Analytics can lead to a loss of security monitoring via Accessing Functionality Not Properly Constrained by ACLs CAPEC-1. An authenticated user holding only read-level Security feature access, and no Elasticsearch privileges, could stop the recurri...

CVE-2021-40346

CVE-2021-40346: HAProxy HTTP Request Smuggling - ACL Bypass Overview This project demonstrates CVE-2021-40346 , a critical integer overflow vulnerability in HAProxy that enables HTTP Request Smuggling attacks to bypass security controls. CVSSv3 Score: 7.5 High Contributors: 1. Boian Eduard 2...