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Including CVEs outside Waratek scope✕Vendor openresty✕
Overview 5 matches · 1 in Waratek scope · 0 protected · 1 exploited · 1 CISA KEV · 2 public PoC · 2 EPSS ≥ 0.5
5matches 1in Waratek scope20.0% 0protected0.0% 1exploited20.0% 1CISA KEV20.0% 2public PoC40.0% 2EPSS ≥ 0.540.0%
Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 1 20.0% No exploit published 0 0.0% Outside Waratek scope 0 0.0% Not applicable 4 80.0% Withdrawn CVE 0 0.0%
Critical 0 0.0% High 5 100.0% Medium 0 0.0% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 5 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 1 20.0% Working exploit published 1 20.0% Proof of concept only 1 20.0% Forecast only 0 0.0% No public exploit 2 40.0%
split by peak 1 / year
Not applicable: 4Mitigation candidate: 1 High: 5 not blocked: 5 No public exploit: 2Proof of concept only: 1Working exploit published: 1Exploited: 1
20201 Not applicable1 High1 not blocked1 No public exploit1 20211 Not applicable1 High1 not blocked1 Working exploit published1 20220 20231 Mitigation candidate1 High1 not blocked1 Exploited1 20240 20251 Not applicable1 High1 not blocked1 Proof of concept only1 20261 Not applicable1 High1 not blocked1 No public exploit1
2020202120222023202420252026
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CVE Severity Published▾ Status Exploitation Description
CVE-2026-55233 High 2026-07-10 Not applicable No public exploit OpenResty is a high performance web platform. From 1.29.2.1 to before 1.29.2.5, an out-of-bounds write vulnerability exists in the upstream PROXY protocol v2 implementation. When OpenResty is configured to send PROXY protocol version 2 headers to upstream servers, constructing the header in the stream proxy protocol v2 patch can write beyond the bounds of the allocated buffer, causing the worker process to crash and resulting in a denial of service. Only configurations that explicitly enable PROXY protocol v2 for upstream connections are impacted. This issue is fixed in version 1.29.2.5.
CVE-2024-33452 High 2025-04-22 Not applicable Proof of concept only An issue in OpenResty lua-nginx-module v.0.10.26 and before allows a remote attacker to conduct HTTP request smuggling via a crafted HEAD request.
CVE-2023-44487 High 2023-10-10 Mitigation candidate Exploited The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
CVE-2021-23017 High 2021-06-01 Not applicable Working exploit published A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.
CVE-2020-11724 High 2020-04-12 Not applicable No public exploit An issue was discovered in OpenResty before 1.15.8.4. ngx_http_lua_subrequest.c allows HTTP request smuggling, as demonstrated by the ngx.location.capture API.