CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
An attacker can cause uncontrolled memory usage with excessive bracing over IMAP. The fix in CVE-2026-27857 was incomplete, only blocking one way of doing this, so there was still another way left open. In particular, the fix was for closing braces, but you could still use open braces to bypass the limit. Using excessive bracing, attacker can cause memory usage up to configured memory limit. Install fixed version, or configure vsz_limit for imap process to low value. No publicly available exploits are known.
Засегнати продукти
- Open-Xchange GmbH OX Dovecot Pro: до 3.0.5; до 3.1.4; до 2.4.3
Red Hat: още 15 продукта, добавени от Red Hat
Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat Enterprise Linux 6
Вид слабост
История
- 12 май 2026 Публикувано
Други уязвимости в Open-Xchange GmbH OX Dovecot Pro
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-42006
- https://nvd.nist.gov/vuln/detail/CVE-2026-42006
- https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0002.json
- https://access.redhat.com/security/cve/CVE-2026-42006
- https://bugzilla.redhat.com/show_bug.cgi?id=2476476
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42006.json
- https://access.redhat.com/errata/RHSA-2026:49513
- https://access.redhat.com/errata/RHSA-2026:42091
- https://access.redhat.com/errata/RHSA-2026:41988
- https://access.redhat.com/errata/RHSA-2026:46532
- https://access.redhat.com/errata/RHSA-2026:46380
- https://access.redhat.com/errata/RHSA-2026:46379
- https://access.redhat.com/errata/RHSA-2026:46381
- https://access.redhat.com/errata/RHSA-2026:44373
- https://access.redhat.com/errata/RHSA-2026:44357
- https://access.redhat.com/errata/RHSA-2026:44355
- https://access.redhat.com/errata/RHSA-2026:41905