CVE-2026-41082
In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.22%
- Percentil entre todas las CVEs puntuadas: 11
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1203Exploitation for Client Executionexecution85 % - Impacto principal
T1565.001Stored Data Manipulationimpact80 % - Impacto secundario
T1005Data from Local Systemcollection75 %
Requiere interacción del usuario (UI:R) para abrir un paquete .install preparado, permitiendo sobrescribir archivos arbitrarios (path traversal: CWE-22) y leer datos sensibles en el sistema local.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (3)
CWE
- CWE-24
- CWE-22
- CWE-24
Referencias
- https://github.com/ocaml/opam/pull/6897
- https://github.com/ocaml/opam/releases/tag/2.5.1
- https://osv.dev/vulnerability/OSEC-2026-03
- https://lists.debian.org/debian-lts-announce/2026/04/msg00021.html
- https://access.redhat.com/security/cve/CVE-2026-41082
- https://bugzilla.redhat.com/show_bug.cgi?id=2459003
- https://osv.dev/vulnerability/OSEC-2026-03
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41082.json
JSON original (NVD)
Mostrar
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