Vulnerability-Lookup

BDU:2026-17191 (CVE-2026-109618)

Vulnerability from fstec – Published: 2026-10-21 – Updated: 2026-10-23 – View on bdu.fstec.ru Exploit publicly available Fixed

Title

Уязвимость функции longjmp() компонента session.upload_progress ядра интерпретатора языка программирования PHP, позволяющая нарушителю выполнить произвольный код

Summary

Уязвимость функции longjmp() компонента session.upload_progress ядра интерпретатора языка программирования PHP связана с использованием памяти после освобождения. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, выполнить произвольный код путем отправки специально сформированного POST-запроса

Severity

10.0 (High) CVSS 2.0


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

9.8 (Critical) CVSS 3.1


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

9.2 (Critical) CVSS 4.0


                      
                        CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation, Resource exhaustion, Resource manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-416 - Использование после освобождения
CWE-755 - Недостаточная обработка исключительных состояний
CWE-824 - Доступ неинициализированного указателя
CWE-1325 - Неправильно контролируемое последовательное распределение памяти

Aliases

CVE-2026-109618, GHSA-W8HW-W9FX-J79W

References

13 references

URL
https://sansec.io/research/php2shell
https://cert.europa.eu/publications/security-advisories/2026-018
https://www.php.net/archive/2026.php#2026-10-20-1
https://www.linux.org.ru/news/security/18405491
https://github.com/php/php-src/releases#release-php-8.2.35
https://github.com/php/php-src/releases#release-php-8.3.36
https://github.com/php/php-src/releases#release-php-8.4.27
https://github.com/php/php-src/releases#release-php-8.5.12
https://security.paloaltonetworks.com/CVE-2026-109618
https://github.com/php/php-src/security/advisories/GHSA-w8hw-w9fx-j79w
https://github.com/9bie/php2shell-bypass-aslr-exp
https://github.com/xuehuolll/php2shell-CVE-2026-109618-109619/tree/63618bd7629d…
https://php2shell.ru/

Impacted products

3 products from 2 vendors

Vendors

Palo Alto Networks Inc., PHP Group

Products

PAN-OS, Panorama, PHP

Versions

10.2 (PAN-OS), 12.2 (PAN-OS), 12.1 (PAN-OS), 11.2 (PAN-OS), 11.1 (PAN-OS), - (Panorama), до 8.2.35 (PHP), от 8.3.0 до 8.3.36 (PHP), от 8.4.0 до 8.4.27 (PHP), от 8.5.0 до 8.5.12 (PHP)

Product types

Operating system, Application software

Platforms

Palo Alto Networks Inc. PAN-OS 10.2, Palo Alto Networks Inc. PAN-OS 12.2, Palo Alto Networks Inc. PAN-OS 12.1, Palo Alto Networks Inc. PAN-OS 11.2, Palo Alto Networks Inc. PAN-OS 11.1

Mitigations

Использование рекомендаций: https://cert.europa.eu/publications/security-advisories/2026-018 https://github.com/php/php-src/releases#release-php-8.2.35 https://github.com/php/php-src/releases#release-php-8.3.36 https://github.com/php/php-src/releases#release-php-8.4.27 https://github.com/php/php-src/releases#release-php-8.5.12 Для программных продуктов Palo Alto Networks Inc.: https://security.paloaltonetworks.com/CVE-2026-109618 Компенсирующие меры: - установка настройки memory_limit = -1 на административном уровне, исключив возможность переопределения приложением; - ограничение параметров конфигурации PHP файла php.ini post_max_size, upload_max_filesize, количество параметров и глубину вложенности входных данных; - ограничение количества частей и заголовков multipart-запросов на уровне веб-сервера; - настройка ограничений потребления памяти через cgroups или контейнеры; - использование средств межсетевого экранирования уровня веб-приложений (WAF) для фильтрации сетевого трафика; - ограничение доступа к уязвимому программному обеспечению, используя схему доступа по «белым спискам»; - использование систем обнаружения и предотвращения вторжений для обнаружения (выявления, регистрации) и реагирования на попытки эксплуатации уязвимостей; - ограничение доступа из внешних сетей (Интернет).

Credits

Уязвимость получила название PHP2Shell

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "CVSS 4.0": "AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
  "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": "Palo Alto Networks Inc., PHP Group",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "10.2 (PAN-OS), 12.2 (PAN-OS), 12.1 (PAN-OS), 11.2 (PAN-OS), 11.1 (PAN-OS), - (Panorama), \u0434\u043e 8.2.35 (PHP), \u043e\u0442 8.3.0 \u0434\u043e 8.3.36 (PHP), \u043e\u0442 8.4.0 \u0434\u043e 8.4.27 (PHP), \u043e\u0442 8.5.0 \u0434\u043e 8.5.12 (PHP)",
  "\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": "\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:\nhttps://cert.europa.eu/publications/security-advisories/2026-018\nhttps://github.com/php/php-src/releases#release-php-8.2.35\nhttps://github.com/php/php-src/releases#release-php-8.3.36\nhttps://github.com/php/php-src/releases#release-php-8.4.27\nhttps://github.com/php/php-src/releases#release-php-8.5.12\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 Palo Alto Networks Inc.:\nhttps://security.paloaltonetworks.com/CVE-2026-109618\n\n\u041a\u043e\u043c\u043f\u0435\u043d\u0441\u0438\u0440\u0443\u044e\u0449\u0438\u0435 \u043c\u0435\u0440\u044b:\n- \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0430 \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0438 memory_limit = -1 \u043d\u0430 \u0430\u0434\u043c\u0438\u043d\u0438\u0441\u0442\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u043c \u0443\u0440\u043e\u0432\u043d\u0435, \u0438\u0441\u043a\u043b\u044e\u0447\u0438\u0432 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435\u043c;\n- \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 PHP \u0444\u0430\u0439\u043b\u0430 php.ini post_max_size, upload_max_filesize, \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432 \u0438 \u0433\u043b\u0443\u0431\u0438\u043d\u0443 \u0432\u043b\u043e\u0436\u0435\u043d\u043d\u043e\u0441\u0442\u0438 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445;\n\n- \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u0430 \u0447\u0430\u0441\u0442\u0435\u0439 \u0438 \u0437\u0430\u0433\u043e\u043b\u043e\u0432\u043a\u043e\u0432 multipart-\u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u0432\u0435\u0431-\u0441\u0435\u0440\u0432\u0435\u0440\u0430;\n\n- \u043d\u0430\u0441\u0442\u0440\u043e\u0439\u043a\u0430 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439 \u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043c\u044f\u0442\u0438 \u0447\u0435\u0440\u0435\u0437 cgroups \u0438\u043b\u0438 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u044b;\n\n- \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432 \u043c\u0435\u0436\u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u044d\u043a\u0440\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0443\u0440\u043e\u0432\u043d\u044f \u0432\u0435\u0431-\u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 (WAF) \u0434\u043b\u044f \u0444\u0438\u043b\u044c\u0442\u0440\u0430\u0446\u0438\u0438 \u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u0442\u0440\u0430\u0444\u0438\u043a\u0430;\n- \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u043c\u0443 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u043c\u0443 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044e, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0441\u0445\u0435\u043c\u0443 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043f\u043e \u00ab\u0431\u0435\u043b\u044b\u043c \u0441\u043f\u0438\u0441\u043a\u0430\u043c\u00bb;\n- \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f \u0438 \u043f\u0440\u0435\u0434\u043e\u0442\u0432\u0440\u0430\u0449\u0435\u043d\u0438\u044f \u0432\u0442\u043e\u0440\u0436\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u0438\u044f (\u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f, \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u0438) \u0438 \u0440\u0435\u0430\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043d\u0430 \u043f\u043e\u043f\u044b\u0442\u043a\u0438 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439;\n- \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u0438\u0437 \u0432\u043d\u0435\u0448\u043d\u0438\u0445 \u0441\u0435\u0442\u0435\u0439 (\u0418\u043d\u0442\u0435\u0440\u043d\u0435\u0442).",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "21.10.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "23.10.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "21.10.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-17191",
  "\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-2026-109618, GHSA-w8hw-w9fx-j79w",
  "\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": "PAN-OS, Panorama, PHP",
  "\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": "Palo Alto Networks Inc. PAN-OS 10.2 , Palo Alto Networks Inc. PAN-OS 12.2 , Palo Alto Networks Inc. PAN-OS 12.1 , Palo Alto Networks Inc. PAN-OS 11.2 , Palo Alto Networks Inc. PAN-OS 11.1 ",
  "\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 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 longjmp() \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 session.upload_progress \u044f\u0434\u0440\u0430 \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440\u0430 \u044f\u0437\u044b\u043a\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f PHP, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434",
  "\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": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f (CWE-416), \u041d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u0430\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0438\u0441\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0445 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0439 (CWE-755), \u0414\u043e\u0441\u0442\u0443\u043f \u043d\u0435\u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0443\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044f (CWE-824), \u041d\u0435\u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u043c\u043e\u0435 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u043f\u0430\u043c\u044f\u0442\u0438 (CWE-1325)",
  "\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 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 longjmp() \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 session.upload_progress \u044f\u0434\u0440\u0430 \u0438\u043d\u0442\u0435\u0440\u043f\u0440\u0435\u0442\u0430\u0442\u043e\u0440\u0430 \u044f\u0437\u044b\u043a\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f PHP \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043f\u0430\u043c\u044f\u0442\u0438 \u043f\u043e\u0441\u043b\u0435 \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0435\u043d\u0438\u044f. \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\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434 \u043f\u0443\u0442\u0435\u043c \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0438 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e POST-\u0437\u0430\u043f\u0440\u043e\u0441\u0430",
  "\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": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u0430 \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 PHP2Shell",
  "\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, \u0418\u0441\u0447\u0435\u0440\u043f\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u043e\u0432, \u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://sansec.io/research/php2shell\nhttps://cert.europa.eu/publications/security-advisories/2026-018\nhttps://www.php.net/archive/2026.php#2026-10-20-1\nhttps://www.linux.org.ru/news/security/18405491\nhttps://github.com/php/php-src/releases#release-php-8.2.35\nhttps://github.com/php/php-src/releases#release-php-8.3.36\nhttps://github.com/php/php-src/releases#release-php-8.4.27\nhttps://github.com/php/php-src/releases#release-php-8.5.12\nhttps://security.paloaltonetworks.com/CVE-2026-109618\nhttps://github.com/php/php-src/security/advisories/GHSA-w8hw-w9fx-j79w\nhttps://github.com/9bie/php2shell-bypass-aslr-exp\nhttps://github.com/xuehuolll/php2shell-CVE-2026-109618-109619/tree/63618bd7629dbfc2d5b505e9dd74e321d8345351\nhttps://php2shell.ru/",
  "\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-416, CWE-755, CWE-824, CWE-1325",
  "\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": "\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\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 10)\n\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\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 9,8)\n\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u043e\u0446\u0435\u043d\u043a\u0430 CVSS 4.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 9,2)"
}

CVE-2026-109618 (GCVE-0-2026-109618)

Vulnerability from cvelistv5 – Published: 2026-10-21 13:48 – Updated: 2026-10-28 03:55

Title

RCE via OOM corruption

Summary

PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE).

Severity

9.2 (Critical)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: active Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-21 00:00 UTC

CWE

CWE-416 - Use after free
CWE-755 - Improper Handling of Exceptional Conditions
CWE-824 - Access of uninitialized pointer
CWE-1325 - Improperly controlled sequential memory allocation
CWE-1419 - Incorrect Initialization of Resource

Assigner

php CNA under the mitre root

CNA scorecard B 81/100 over 27 records in the last 180 days details

References

8 references

URL	Tags
https://github.com/php/php-src/security/advisorie…	vendor-advisory
https://www.wiz.io/blog/php2shell-php-rce	third-party-advisory
https://arcticwolf.com/resources/blog/php2shell-c…	third-party-advisory
https://php2shell.delftintellab.com	third-party-advisory
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource
http://www.openwall.com/lists/oss-security/2026/10/21/6
http://www.openwall.com/lists/oss-security/2026/10/23/5
https://cert-portal.siemens.com/productcert/html/…

Impacted products

2 products

Vendor	Product	Version
PHP Group	PHP	Affected: 8.2.* , < 8.2.35 (semver) Affected: 8.3.* , < 8.3.36 (semver) Affected: 8.4.* , < 8.4.27 (semver) Affected: 8.5.* , < 8.5.12 (semver)
Siemens	RUGGEDCOM APE1808	Affected: 0 , < * (custom)

Credits

Ryan at Calif.io Wiz OpenAI Arnaud Le Blanc Ilija Tovilo Jakub Zelenka Nora Dossche

Show details on NVD website

JSON

To clipboard

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  "containers": {
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              "content": {
                "id": "CVE-2026-109618",
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                  {
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                "role": "CISA Coordinator",
                "timestamp": "2026-10-21T00:00:00+00:00",
                "version": "2.0.3"
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              "type": "ssvc"
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            "url": "https://cert-portal.siemens.com/productcert/html/ssa-566512.html"
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    ],
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          "product": "PHP",
          "vendor": "PHP Group",
          "versions": [
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              "base64": false,
              "type": "text/html",
              "value": "PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave request memory in an uninitialized state before performing an allocation. The subsequent request cleanup procedure may read or branch on this memory. Multiple OOM strategies can consistently trigger this condition and lead to remote code execution (RCE).\u003cbr\u003e"
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              "value": "CAPEC-234 Hijacking a privileged process"
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      "metrics": [
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            "attackVector": "NETWORK",
            "baseScore": 9.2,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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            "vulnAvailabilityImpact": "HIGH",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "lang": "en",
              "value": "GENERAL"
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              "cweId": "CWE-416",
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

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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.

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