جزئیات آسیب‌پذیری
CVE-2026-42055
NGINX ngx_http_proxy_v2_module and ngx_http_grpc_module vulnerability
شرح رسمی (انگلیسی)
NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_proxy_v2_module and ngx_http_grpc_module modules. This vulnerability exists when the proxy_http_version to 2 or grpc_pass directives are used to proxy HTTP/2 traffic, the ignore_invalid_headers directive is set to off, and the large_client_header_buffers directive size is larger than 2 megabytes. A remote, unauthenticated attacker, along with conditions beyond their control, could send large headers while creating an upstream request. This may cause a heap-based buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 9.2بحرانی | 4.0 | CVEProject cvelistV5 (CNA) (f5) | 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 |
| 8.1بالا | 3.1 | CVEProject cvelistV5 (CNA) (f5) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 8.1بالا | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| F5 | NGINX Open Source | 1.13.10 ≤ v < 1.31.2 | CVEProject cvelistV5 (CNA) |
| F5 | NGINX Open Source | 1.30.2 ≤ v < 1.30.3 | CVEProject cvelistV5 (CNA) |
| F5 | NGINX Plus | 37.0 ≤ v < 37.0.2.1 | CVEProject cvelistV5 (CNA) |
| F5 | NGINX Plus | R36 ≤ v < R36 P6 | CVEProject cvelistV5 (CNA) |
| Red Hat | Red Hat Openshift Data Foundation 4 | همه | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۱۳- https://my.f5.com/manage/s/article/K000161584 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-42055 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2489866 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42055.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:36364 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:38847 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:36618 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:36331 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:36639 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:46836 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:27197 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:44481 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:58981 vendor-advisoryx_refsource_REDHAT
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۳/۲۷
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۶/۲۳
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- f5
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهره‌برداری
- ندارد
- اثر فنی
- کامل
ضعف‌ها (CWE)
- CWE-122Heap-based Buffer Overflow
- CWE-131Incorrect Calculation of Buffer Size