Weaknesses of type CWE-669

59 results

Transferência incorreta de recursos entre contextos de segurança

Ocorre quando um recurso (arquivo, memória, conexão, token) é transferido entre contextos de segurança distintos (ex: kernel para userspace, sandbox para sistema) sem validação ou isolamento adequado. O recurso herda ou perde restrições de segurança durante a transferência, permitindo que código em um contexto acesse ou controle dados que deveria estar vedado.

Example

Um driver passa um ponteiro de memória do kernel diretamente para uma aplicação userspace sem copiar os dados ou validar o acesso. A aplicação then modifica a memória kernel, causando privilege escalation. Outro caso: um sandbox retorna um file descriptor aberto para um arquivo fora da restrição, permitindo que o processo escape das limitações impostas.

How to mitigate

Implemente validação explícita ao transferir recursos entre contextos: copie dados em vez de compartilhar referências diretas, valide permissões no contexto de destino, e use abstrações que isolem os contextos (ex: system calls com verificação, APIs seguras). Documente claramente a posse e as restrições de cada recurso em cada esfera.

CVE-2023-41894MEDIUMLocal-only webhooks externally accessible via SniTun in Home Assistant CoreEPSS 0.4%CVE-2026-48846MEDIUMIn Roundcube Webmail 1.6.x before 1.6.16 and 1.7.x before 1.7.1, the remote image blocking feature can be bypassed via a crafted CSS var() vEPSS 0.4%CVE-2026-35543MEDIUMAn issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via SVG content (wiEPSS 0.4%CVE-2026-35542MEDIUMAn issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. The remote image blocking feature can be bypassed via a crafted backgEPSS 0.4%CVE-2025-54310MEDIUMqBittorrent before 5.1.2 does not prevent access to a local file that is referenced in a link URL. This affects rsswidget.cpp and searchjobwEPSS 0.4%CVE-2026-48845MEDIUMIn Roundcube Webmail 1.6.x between 1.6.14 and 1.6.16 and 1.7.x before 1.7.1, remote image blocking was not honored for URLs pointing to locaEPSS 0.4%CVE-2025-41645HIGHSMA: Sunny Portal demo system privilege escalationEPSS 0.4%CVE-2026-35544MEDIUMAn issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mailEPSS 0.4%CVE-2026-24708HIGHAn issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a rooEPSS 0.3%CVE-2026-35545MEDIUMAn issue was discovered in Roundcube Webmail before 1.5.15 and 1.6.15. The remote image blocking feature can be bypassed via SVG content in EPSS 0.3%CVE-2024-38519HIGHyt-dlp and youtube-dl vulnerable to file system modification and RCE through improper file-extension sanitizationEPSS 0.3%CVE-2025-54352LOWWordPress 3.5 through 6.8.2 allows remote attackers to guess titles of private and draft posts via pingback.ping XML-RPC requests. NOTE: theEPSS 0.3%CVE-2026-35540MEDIUMAn issue was discovered in Roundcube Webmail 1.6.0 before 1.6.14. Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messEPSS 0.3%CVE-2025-59363HIGHIn One Identity OneLogin before 2025.3.0, a request returns the OIDC client secret with GET Apps API v2 (even though this secret should onlyEPSS 0.3%CVE-2019-0042MEDIUMIncorrect messages from Juniper Identity Management Service (JIMS) can trigger Denial of Service or firewall bypass conditions for SRX series devicesEPSS 0.3%CVE-2026-44599LOWTor before 0.4.9.7 can attempt or accept BEGIN_DIR via conflux legs, aka TROVE-2026-008.EPSS 0.3%CVE-2026-40552MEDIUMRemote Code Execution in mpGabinetEPSS 0.3%CVE-2026-44917MEDIUMOpenStack Ironic before 35.0.2 allows a malicious authenticated project admin or manager to read local files on the Ironic conductor via a pEPSS 0.3%CVE-2026-46448MEDIUMIn OpenStack Nova before 33.0.2, the server create API does not strip certain hint data. The resulting instance has no Placement allocation.EPSS 0.3%CVE-2026-12068HIGHAvira Password Manager credential disclosure via cross-origin autofill in FirefoxEPSS 0.3%