F5 Njs vulnerabilities

CVE-2026-8711 [CRITICAL] CWE-122 CVE-2026-8711: NGINX JavaScript has a vulnerability when the js_fetch_proxy directive is configured with at least o NGINX JavaScript has a vulnerability when the js_fetch_proxy directive is configured with at least one client-controlled NGINX variable (for example, $http_*, $arg_*, $cookie_*) and a location invoking the ngx.fetch() operation from NGINX JavaScript. An unauthenticated attacker can exploit this vulnerability by sending crafted HTTP requests. This ma

CVE-2022-29379 [CRITICAL] CWE-787 CVE-2022-29379: Nginx NJS v0.7.3 was discovered to contain a stack overflow in the function njs_default_module_loade Nginx NJS v0.7.3 was discovered to contain a stack overflow in the function njs_default_module_loader at /src/njs/src/njs_module.c. NOTE: multiple third parties dispute this report, e.g., the behavior is only found in unreleased development code that was not part of the 0.7.2, 0.7.3, or 0.7.4 release

CVE-2020-19692 [CRITICAL] CWE-120 CVE-2020-19692: Buffer Overflow vulnerabilty found in Nginx NJS v.0feca92 allows a remote attacker to execute arbitr Buffer Overflow vulnerabilty found in Nginx NJS v.0feca92 allows a remote attacker to execute arbitrary code via the njs_module_read in the njs_module.c file.

CVE-2021-46463 [CRITICAL] CWE-843 CVE-2021-46463: njs through 0.7.1, used in NGINX, was discovered to contain a control flow hijack caused by a Type C njs through 0.7.1, used in NGINX, was discovered to contain a control flow hijack caused by a Type Confusion vulnerability in njs_promise_perform_then().

CVE-2019-11839 [CRITICAL] CWE-787 CVE-2019-11839: njs through 0.3.1, used in NGINX, has a heap-based buffer overflow in Array.prototype.push after a r njs through 0.3.1, used in NGINX, has a heap-based buffer overflow in Array.prototype.push after a resize, related to njs_array_prototype_push in njs/njs_array.c, because of njs_array_expand size mishandling.

CVE-2019-11838 [CRITICAL] CWE-787 CVE-2019-11838: njs through 0.3.1, used in NGINX, has a heap-based buffer overflow in Array.prototype.splice after a njs through 0.3.1, used in NGINX, has a heap-based buffer overflow in Array.prototype.splice after a resize, related to njs_array_prototype_splice in njs/njs_array.c, because of njs_array_expand size mishandling.

CVE-2020-19695 [CRITICAL] CWE-120 CVE-2020-19695: Buffer Overflow found in Nginx NJS allows a remote attacker to execute arbitrary code via the njs_ob Buffer Overflow found in Nginx NJS allows a remote attacker to execute arbitrary code via the njs_object_property parameter of the njs/njs_vm.c function.

CVE-2019-12206 [CRITICAL] CWE-787 CVE-2019-12206: njs through 0.3.1, used in NGINX, has a heap-based buffer overflow in nxt_utf8_encode in nxt_utf8.c. njs through 0.3.1, used in NGINX, has a heap-based buffer overflow in nxt_utf8_encode in nxt_utf8.c.

CVE-2019-12208 [CRITICAL] CWE-787 CVE-2019-12208: njs through 0.3.1, used in NGINX, has a heap-based buffer overflow in njs_function_native_call in nj njs through 0.3.1, used in NGINX, has a heap-based buffer overflow in njs_function_native_call in njs/njs_function.c.

CVE-2022-27007 [CRITICAL] CWE-416 CVE-2022-27007: nginx njs 0.7.2 is affected suffers from Use-after-free in njs_function_frame_alloc() when it try to nginx njs 0.7.2 is affected suffers from Use-after-free in njs_function_frame_alloc() when it try to invoke from a restored frame saved with njs_function_frame_save().

CVE-2022-25139 [CRITICAL] CWE-416 CVE-2022-25139: njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfi njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.

CVE-2022-43286 [CRITICAL] CWE-416 CVE-2022-43286: Nginx NJS v0.7.2 was discovered to contain a heap-use-after-free bug caused by illegal memory copy i Nginx NJS v0.7.2 was discovered to contain a heap-use-after-free bug caused by illegal memory copy in the function njs_json_parse_iterator_call at njs_json.c.

CVE-2019-12207 [CRITICAL] CWE-125 CVE-2019-12207: njs through 0.3.1, used in NGINX, has a heap-based buffer over-read in nxt_utf8_decode in nxt/nxt_ut njs through 0.3.1, used in NGINX, has a heap-based buffer over-read in nxt_utf8_decode in nxt/nxt_utf8.c.

CVE-2019-13067 [CRITICAL] CVE-2019-13067: njs through 0.3.3, used in NGINX, has a buffer over-read in nxt_utf8_decode in nxt/nxt_utf8.c. This njs through 0.3.3, used in NGINX, has a buffer over-read in nxt_utf8_decode in nxt/nxt_utf8.c. This issue occurs after the fix for CVE-2019-12207 is in place.

CVE-2022-34029 [CRITICAL] CWE-125 CVE-2022-34029: Nginx NJS v0.7.4 was discovered to contain an out-of-bounds read via njs_scope_value at njs_scope.h. Nginx NJS v0.7.4 was discovered to contain an out-of-bounds read via njs_scope_value at njs_scope.h.

CVE-2022-27008 [HIGH] CWE-120 CVE-2022-27008: nginx njs 0.7.2 is vulnerable to Buffer Overflow. Type confused in Array.prototype.concat() when a s nginx njs 0.7.2 is vulnerable to Buffer Overflow. Type confused in Array.prototype.concat() when a slow array appended element is fast array.

CVE-2021-46462 [HIGH] CVE-2021-46462: njs through 0.7.1, used in NGINX, was discovered to contain a segmentation violation via njs_object_ njs through 0.7.1, used in NGINX, was discovered to contain a segmentation violation via njs_object_set_prototype in /src/njs_object.c.

CVE-2023-27730 [HIGH] CWE-125 CVE-2023-27730: Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_lvlhsh_fin Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_lvlhsh_find at src/njs_lvlhsh.c.

CVE-2023-27728 [HIGH] CWE-125 CVE-2023-27728: Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_dump_is_re Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_dump_is_recursive at src/njs_vmcode.c.

CVE-2023-27727 [HIGH] CWE-125 CVE-2023-27727: Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_function_f Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function njs_function_frame at src/njs_function.h.