[CLSA-2026:1793100004] Fix CVE(s): CVE-2026-15176, CVE-2026-93479, CVE-2026-97205
Type:
security
Severity:
Critical
Release date:
2026-10-27 11:20:17 UTC
Description:
* SECURITY UPDATE: buffer overflow during URI-to-path mapping after a rewrite in a location using alias - debian/patches/CVE-2026-15176.patch: reject URI-to-path mapping while r->uri_changed is set in src/http/ngx_http_core_module.c - CVE-2026-15176 * SECURITY UPDATE: buffer overflow in HTTP and stream script evaluation - debian/patches/CVE-2026-93479.patch: keep the script engine end pointer at the end of the result buffer rather than the reserved area in src/http/ngx_http_script.c and src/stream/ngx_stream_script.c - CVE-2026-93479 * SECURITY UPDATE: use-after-free when pending asynchronous operations overflow the request blocked counter - debian/patches/CVE-2026-97205.patch: cap pending operations and use synchronous paths or reject new operations before r->main->blocked can wrap in the HTTP copy filter, file cache, and upstream code - CVE-2026-97205 * Fix worker crashes in third-party modules that reuse the complex value script code, such as ngx_devel_kit based set-misc directives - debian/patches/CVE-2026-42533.patch: include the upstream follow-up that restores the stack update in ngx_http_script_complex_value_code() of src/http/ngx_http_script.c
Updated packages:
  • nginx1.27_1.27.5-1~bookworm+tuxcare.els19_amd64.deb
    sha:19b056c3b93b53f523df6d30d12cb800e9dfb504
  • nginx1.27_1.27.5-1~bookworm+tuxcare.els19_arm64.deb
    sha:e5c900b105b9fc73061d86f1f21dd90d8470c1e6
Notes:
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