Vulnerability-Lookup

BDU:2026-12842 (CVE-2026-35092)

Vulnerability from fstec – Published: 2026-08-28 – Updated: 2026-09-07 – View on bdu.fstec.ru Exploit publicly available Fixed

Title

Уязвимость кластерного движка Corosync, связанная с целочисленным переполнением, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость кластерного движка Corosync связана с целочисленным переполнением. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в обслуживании

Severity

7.8 (High) CVSS 2.0


                      
                        AV:N/AC:L/Au:N/C:N/I:N/A:C

7.5 (High) CVSS 3.1


                      
                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-190 - Целочисленное переполнение или циклический сдвиг

Aliases

CVE-2026-35092

References

10 references

URL
https://nvd.nist.gov/vuln/detail/CVE-2026-35092
https://security-tracker.debian.org/tracker/CVE-2026-35092
https://access.redhat.com/security/cve/CVE-2026-35092
https://bugzilla.redhat.com/show_bug.cgi?id=2453169
https://bugzilla.redhat.com/show_bug.cgi?id=2453814
https://github.com/corosync/corosync/commit/4082294f5094a7591e4e00658c5a605f05d644f1
https://wiki.astralinux.ru/astra-linux-se17-bulletin-2026-0820SE17
https://deb.freexian.com/extended-lts/tracker/CVE-2026-35092
https://ubuntu.com/security/CVE-2026-35092
https://altsp.su/obnovleniya-bezopasnosti/

Impacted products

6 products from 7 vendors

Vendors

Сообщество свободного программного обеспечения, Red Hat, Inc., ООО «РусБИТех-Астра», Canonical Ltd., АО «ИВК», The Corosync Development Community

Products

Debian GNU/Linux, Red Hat Enterprise Linux, Astra Linux Special Edition (запись в едином реестре российских программ №369), Ubuntu, АЛЬТ СП 10, corosync

Versions

9 (Debian GNU/Linux), 8 (Red Hat Enterprise Linux), 10 (Debian GNU/Linux), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 1.7 (Astra Linux Special Edition), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), 8.4 Advanced Mission Critical Update Support (Red Hat Enterprise Linux), - (АЛЬТ СП 10), 24.04 LTS (Ubuntu), 9.0 Update Services for SAP Solutions (Red Hat Enterprise Linux), 8.6 Update Services for SAP Solutions (Red Hat Enterprise Linux), 8.6 Telecommunications Update Service (Red Hat Enterprise Linux), 8.6 Advanced Mission Critical Update Support (Red Hat Enterprise Linux), 7 Extended Lifecycle Support (Red Hat Enterprise Linux), 9.4 Extended Update Support (Red Hat Enterprise Linux), 10 (Red Hat Enterprise Linux), 8.8 Telecommunications Update Service (Red Hat Enterprise Linux), 8.8 Update Services for SAP Solutions (Red Hat Enterprise Linux), 9.2 Update Services for SAP Solutions (Red Hat Enterprise Linux), 13 (Debian GNU/Linux), 8.4 Extended Update Support Long-Life Add-On (Red Hat Enterprise Linux), 25.10 (Ubuntu), 9.6 Extended Update Support (Red Hat Enterprise Linux), 10.0 Extended Update Support (Red Hat Enterprise Linux), - (corosync)

Product types

Operating system, Application software

Platforms

Сообщество свободного программного обеспечения Debian GNU/Linux 9, Red Hat, Inc. Red Hat Enterprise Linux 8, Сообщество свободного программного обеспечения Debian GNU/Linux 10, Сообщество свободного программного обеспечения Debian GNU/Linux 11, Сообщество свободного программного обеспечения Debian GNU/Linux 12, ООО «РусБИТех-Астра» Astra Linux Special Edition 1.7 (запись в едином реестре российских программ №369), Canonical Ltd. Ubuntu 22.04 LTS, Inc. Red Hat Enterprise Linux 9, Inc. Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, АО «ИВК» АЛЬТ СП 10 -, Canonical Ltd. Ubuntu 24.04 LTS, Inc. Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions, Inc. Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, Inc. Red Hat Enterprise Linux 8.6 Telecommunications Update Service, Inc. Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Inc. Red Hat Enterprise Linux 7 Extended Lifecycle Support, Inc. Red Hat Enterprise Linux 9.4 Extended Update Support, Inc. Red Hat Enterprise Linux 10, Inc. Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Inc. Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Inc. Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Сообщество свободного программного обеспечения Debian GNU/Linux 13, Inc. Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Canonical Ltd. Ubuntu 25.10, Inc. Red Hat Enterprise Linux 9.6 Extended Update Support, Inc. Red Hat Enterprise Linux 10.0 Extended Update Support

Mitigations

В условиях отсутствия обновлений безопасности от производителя рекомендуется придерживаться "Рекомендаций по безопасной настройке операционных систем LINUX", изложенных в методическом документе ФСТЭК России, утверждённом 25 декабря 2022 года. Использование рекомендаций: Для Corosync: https://github.com/corosync/corosync/commit/4082294f5094a7591e4e00658c5a605f05d644f1 Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2026-35092 https://deb.freexian.com/extended-lts/tracker/CVE-2026-35092 Для ОС Astra Linux: обновить пакет corosync до 3.1.2-2.astra4 или более высокой версии: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2026-0820SE17 Для Ubuntu: https://ubuntu.com/security/CVE-2026-35092 Для программных продуктов Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2026-35092 Для ОС АЛЬТ СП 10: установка обновления из публичного репозитория программного средства: https://altsp.su/obnovleniya-bezopasnosti/

Credits

Исследователь: Sebastin Alba Vives

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "\u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f, Red Hat, Inc., \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, Canonical Ltd., \u0410\u041e \u00ab\u0418\u0412\u041a\u00bb, The Corosync Development Community",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "9 (Debian GNU/Linux), 8 (Red Hat Enterprise Linux), 10 (Debian GNU/Linux), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 1.7 (Astra Linux Special Edition), 22.04 LTS (Ubuntu), 9 (Red Hat Enterprise Linux), 8.4 Advanced Mission Critical Update Support (Red Hat Enterprise Linux), - (\u0410\u041b\u042c\u0422 \u0421\u041f 10), 24.04 LTS (Ubuntu), 9.0 Update Services for SAP Solutions (Red Hat Enterprise Linux), 8.6 Update Services for SAP Solutions (Red Hat Enterprise Linux), 8.6 Telecommunications Update Service (Red Hat Enterprise Linux), 8.6 Advanced Mission Critical Update Support (Red Hat Enterprise Linux), 7 Extended Lifecycle Support (Red Hat Enterprise Linux), 9.4 Extended Update Support (Red Hat Enterprise Linux), 10 (Red Hat Enterprise Linux), 8.8 Telecommunications Update Service (Red Hat Enterprise Linux), 8.8 Update Services for SAP Solutions (Red Hat Enterprise Linux), 9.2 Update Services for SAP Solutions (Red Hat Enterprise Linux), 13 (Debian GNU/Linux), 8.4 Extended Update Support Long-Life Add-On (Red Hat Enterprise Linux), 25.10 (Ubuntu), 9.6 Extended Update Support (Red Hat Enterprise Linux), 10.0 Extended Update Support (Red Hat Enterprise Linux), - (corosync)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0412 \u0443\u0441\u043b\u043e\u0432\u0438\u044f\u0445 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u044f \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0439 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u043e\u0442 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0443\u0435\u0442\u0441\u044f \u043f\u0440\u0438\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c\u0441\u044f \"\u0420\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u043e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0439 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c LINUX\", \u0438\u0437\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0445 \u0432 \u043c\u0435\u0442\u043e\u0434\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0435 \u0424\u0421\u0422\u042d\u041a \u0420\u043e\u0441\u0441\u0438\u0438, \u0443\u0442\u0432\u0435\u0440\u0436\u0434\u0451\u043d\u043d\u043e\u043c 25 \u0434\u0435\u043a\u0430\u0431\u0440\u044f 2022 \u0433\u043e\u0434\u0430.\n\n\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\n\u0414\u043b\u044f Corosync:\nhttps://github.com/corosync/corosync/commit/4082294f5094a7591e4e00658c5a605f05d644f1\n\n\u0414\u043b\u044f Debian GNU/Linux:\nhttps://security-tracker.debian.org/tracker/CVE-2026-35092\nhttps://deb.freexian.com/extended-lts/tracker/CVE-2026-35092\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n\u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 corosync \u0434\u043e 3.1.2-2.astra4 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2026-0820SE17\n\n\u0414\u043b\u044f Ubuntu:\nhttps://ubuntu.com/security/CVE-2026-35092\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Red Hat, Inc.:\nhttps://access.redhat.com/security/cve/CVE-2026-35092\n\n\u0414\u043b\u044f \u041e\u0421 \u0410\u041b\u042c\u0422 \u0421\u041f 10: \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0437 \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u043e\u0433\u043e \u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430: https://altsp.su/obnovleniya-bezopasnosti/",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "01.04.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "07.09.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "28.08.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-12842",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2026-35092",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Debian GNU/Linux, Red Hat Enterprise Linux, Astra Linux Special Edition (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), Ubuntu, \u0410\u041b\u042c\u0422 \u0421\u041f 10, corosync",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "\u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 9 , Red Hat, Inc. Red Hat Enterprise Linux 8 , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 10 , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 11 , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 12 , \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.7  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), Canonical Ltd. Ubuntu 22.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 9 , Red Hat, Inc. Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support , \u0410\u041e \u00ab\u0418\u0412\u041a\u00bb \u0410\u041b\u042c\u0422 \u0421\u041f 10 - , Canonical Ltd. Ubuntu 24.04 LTS , Red Hat, Inc. Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions , Red Hat, Inc. Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions , Red Hat, Inc. Red Hat Enterprise Linux 8.6 Telecommunications Update Service , Red Hat, Inc. Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support , Red Hat, Inc. Red Hat Enterprise Linux 7 Extended Lifecycle Support , Red Hat, Inc. Red Hat Enterprise Linux 9.4 Extended Update Support , Red Hat, Inc. Red Hat Enterprise Linux 10 , Red Hat, Inc. Red Hat Enterprise Linux 8.8 Telecommunications Update Service , Red Hat, Inc. Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions , Red Hat, Inc. Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Debian GNU/Linux 13 , Red Hat, Inc. Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On , Canonical Ltd. Ubuntu 25.10 , Red Hat, Inc. Red Hat Enterprise Linux 9.6 Extended Update Support , Red Hat, Inc. Red Hat Enterprise Linux 10.0 Extended Update Support ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043b\u0430\u0441\u0442\u0435\u0440\u043d\u043e\u0433\u043e \u0434\u0432\u0438\u0436\u043a\u0430 Corosync, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u0446\u0435\u043b\u043e\u0447\u0438\u0441\u043b\u0435\u043d\u043d\u044b\u043c \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435\u043c, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u043c \u0434\u043e\u0441\u0442\u0443\u043f\u0435",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0426\u0435\u043b\u043e\u0447\u0438\u0441\u043b\u0435\u043d\u043d\u043e\u0435 \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0438\u043b\u0438 \u0446\u0438\u043a\u043b\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0441\u0434\u0432\u0438\u0433 (CWE-190)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043b\u0430\u0441\u0442\u0435\u0440\u043d\u043e\u0433\u043e \u0434\u0432\u0438\u0436\u043a\u0430 Corosync \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0446\u0435\u043b\u043e\u0447\u0438\u0441\u043b\u0435\u043d\u043d\u044b\u043c \u043f\u0435\u0440\u0435\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435\u043c. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": "\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c: Sebastin Alba Vives",
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://nvd.nist.gov/vuln/detail/CVE-2026-35092\nhttps://security-tracker.debian.org/tracker/CVE-2026-35092\nhttps://access.redhat.com/security/cve/CVE-2026-35092\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2453169\nhttps://bugzilla.redhat.com/show_bug.cgi?id=2453814\nhttps://github.com/corosync/corosync/commit/4082294f5094a7591e4e00658c5a605f05d644f1\nhttps://wiki.astralinux.ru/astra-linux-se17-bulletin-2026-0820SE17\nhttps://deb.freexian.com/extended-lts/tracker/CVE-2026-35092\nhttps://ubuntu.com/security/CVE-2026-35092\nhttps://altsp.su/obnovleniya-bezopasnosti/",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430, \u041f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0435 \u041f\u041e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-190",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,5)"
}

CVE-2026-35092 (GCVE-0-2026-35092)

Vulnerability from cvelistv5 – Published: 2026-04-01 13:18 – Updated: 2026-08-21 12:15

Title

Corosync: corosync: denial of service via integer overflow in join message validation

Summary

A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-01 13:29 UTC

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

redhat redhat root

References

17 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:13644	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:13657	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:13673	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14205	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14210	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14211	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14212	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14213	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14214	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14215	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:14216	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19043	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19200	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:20916	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-35092	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2453169
https://bugzilla.redhat.com/show_bug.cgi?id=2453814	issue-trackingx_refsource_REDHAT

Impacted products

19 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:3.1.9-2.el10_1.1 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.1
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:3.1.10-1.el10_2.1 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:3.1.9-1.el10_0.2 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support	Unaffected: 0:2.4.5-7.el7_9.3 , < * (rpm) cpe:/o:redhat:enterprise_linux:7::server
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:3.1.8-1.el8_10.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb cpe:/a:redhat:enterprise_linux:8::highavailability cpe:/a:redhat:enterprise_linux:8::resilientstorage
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	Unaffected: 0:3.1.0-3.el8_4.2 , < * (rpm) cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_aus:8.4::highavailability cpe:/a:redhat:rhel_eus_long_life:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::highavailability
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On	Unaffected: 0:3.1.0-3.el8_4.2 , < * (rpm) cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_aus:8.4::highavailability cpe:/a:redhat:rhel_eus_long_life:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::highavailability
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	Unaffected: 0:3.1.5-2.el8_6.1 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::highavailability cpe:/a:redhat:rhel_tus:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::highavailability
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service	Unaffected: 0:3.1.5-2.el8_6.1 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::highavailability cpe:/a:redhat:rhel_tus:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::highavailability
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	Unaffected: 0:3.1.5-2.el8_6.1 , < * (rpm) cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::appstream cpe:/a:redhat:rhel_e4s:8.6::highavailability cpe:/a:redhat:rhel_tus:8.6::appstream cpe:/a:redhat:rhel_tus:8.6::highavailability
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service	Unaffected: 0:3.1.7-1.el8_8.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_e4s:8.8::highavailability cpe:/a:redhat:rhel_tus:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::highavailability
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions	Unaffected: 0:3.1.7-1.el8_8.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_e4s:8.8::highavailability cpe:/a:redhat:rhel_tus:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::highavailability
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:3.1.9-2.el9_7.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::highavailability cpe:/a:redhat:enterprise_linux:9::resilientstorage
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:3.1.10-1.el9_8.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::highavailability cpe:/a:redhat:enterprise_linux:9::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	Unaffected: 0:3.1.5-3.el9_0.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.0::appstream cpe:/a:redhat:rhel_e4s:9.0::highavailability cpe:/a:redhat:rhel_e4s:9.0::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions	Unaffected: 0:3.1.7-1.el9_2.1 , < * (rpm) cpe:/a:redhat:rhel_e4s:9.2::appstream cpe:/a:redhat:rhel_e4s:9.2::highavailability cpe:/a:redhat:rhel_e4s:9.2::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support	Unaffected: 0:3.1.8-1.el9_4.1 , < * (rpm) cpe:/a:redhat:rhel_eus:9.4::appstream cpe:/a:redhat:rhel_eus:9.4::crb cpe:/a:redhat:rhel_eus:9.4::highavailability cpe:/a:redhat:rhel_eus:9.4::resilientstorage
Red Hat	Red Hat Enterprise Linux 9.6 Extended Update Support	Unaffected: 0:3.1.9-2.el9_6.1 , < * (rpm) cpe:/a:redhat:rhel_eus:9.6::appstream cpe:/a:redhat:rhel_eus:9.6::crb cpe:/a:redhat:rhel_eus:9.6::highavailability cpe:/a:redhat:rhel_eus:9.6::resilientstorage
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-04-01 11:48

Credits

Red Hat would like to thank Sebastián Alba Vives for reporting this issue.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-35092",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-01T13:29:07.148266Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-01T13:32:35.483Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.1"
          ],
          "defaultStatus": "affected",
          "packageName": "corosync",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat",
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              "versionType": "rpm"
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          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.2"
          ],
          "defaultStatus": "affected",
          "packageName": "corosync",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat",
          "versions": [
            {
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              "status": "unaffected",
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            }
          ]
        },
        {
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          "cpes": [
            "cpe:/o:redhat:enterprise_linux_eus:10.0"
          ],
          "defaultStatus": "affected",
          "packageName": "corosync",
          "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
          "vendor": "Red Hat",
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        },
        {
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          "cpes": [
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          ],
          "defaultStatus": "affected",
          "packageName": "corosync",
          "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:2.4.5-7.el7_9.3",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:8::appstream",
            "cpe:/a:redhat:enterprise_linux:8::crb",
            "cpe:/a:redhat:enterprise_linux:8::highavailability",
            "cpe:/a:redhat:enterprise_linux:8::resilientstorage"
          ],
          "defaultStatus": "affected",
          "packageName": "corosync",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:3.1.8-1.el8_10.1",
              "versionType": "rpm"
            }
          ]
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.