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Overview 16 matches · 0 protected · 0 exploited · 0 CISA KEV · 0 public PoC · 0 EPSS ≥ 0.5
16matches 0protected0.0% 0exploited0.0% 0CISA KEV0.0% 0public PoC0.0% 0EPSS ≥ 0.50.0%
Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 16 100.0%
Critical 5 31.2% High 8 50.0% Medium 3 18.8% 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 16 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 0 0.0% Working exploit published 0 0.0% Proof of concept only 1 6.2% Forecast only 0 0.0% No public exploit 15 93.8%
split by peak 4 / year
No exploit published: 16 Medium: 3High: 8Critical: 5 not blocked: 16 No public exploit: 15Proof of concept only: 1
20204 No exploit published4 Critical1 High2 Medium1 not blocked4 No public exploit4 20212 No exploit published2 Medium2 not blocked2 No public exploit2 20222 No exploit published2 High2 not blocked2 No public exploit2 20232 No exploit published2 High2 not blocked2 No public exploit2 20241 No exploit published1 High1 not blocked1 No public exploit1 20251 No exploit published1 High1 not blocked1 No public exploit1 20264 No exploit published4 Critical4 not blocked4 Proof of concept only1 No public exploit3
2020202120222023202420252026
16 matches Sign in to download these CVEs as CSV or JSON, or to follow them in a feed.
CVE Severity Published▾ Status Exploitation Description
CVE-2026-28369 Critical 2026-03-27 No exploit published No public exploit A flaw was found in Undertow. When Undertow receives an HTTP request where the first header line starts with one or more spaces, it incorrectly processes the request by stripping these leading spaces. This behavior, which violates HTTP standards, can be exploited by a remote attacker to perform request smuggling. Request smuggling allows an attacker to bypass security mechanisms, access restricted information, or manipulate web caches, potentially leading to unauthorized actions or data exposure.
CVE-2026-28368 Critical 2026-03-27 No exploit published No public exploit A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to launch request smuggling attacks, potentially bypassing security controls and accessing unauthorized resources.
CVE-2026-28367 Critical 2026-03-27 No exploit published No public exploit A flaw was found in Undertow. A remote attacker can exploit this vulnerability by sending `\r\r\r` as a header block terminator. This can be used for request smuggling with certain proxy servers, such as older versions of Apache Traffic Server and Google Cloud Classic Application Load Balancer, potentially leading to unauthorized access or manipulation of web requests.
CVE-2025-12543 Critical 2026-01-07 No exploit published Proof of concept only A flaw was found in the Undertow HTTP server core, which is used in WildFly, JBoss EAP, and other Java applications. The Undertow library fails to properly validate the Host header in incoming HTTP requests.As a result, requests containing malformed or malicious Host headers are processed without rejection, enabling attackers to poison caches, perform internal network scans, or hijack user sessions.
CVE-2025-9784 High 2025-09-02 No exploit published No public exploit A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).
CVE-2024-7885 High 2024-08-21 No exploit published No public exploit A vulnerability was found in Undertow where the ProxyProtocolReadListener reuses the same StringBuilder instance across multiple requests. This issue occurs when the parseProxyProtocolV1 method processes multiple requests on the same HTTP connection. As a result, different requests may share the same StringBuilder instance, potentially leading to information leakage between requests or responses. In some cases, a value from a previous request or response may be erroneously reused, which could lead to unintended data exposure. This issue primarily results in errors and connection termination but creates a risk of data leakage in multi-request environments.
CVE-2023-4853 High 2023-09-20 No exploit published No public exploit A flaw was found in Quarkus where HTTP security policies are not sanitizing certain character permutations correctly when accepting requests, resulting in incorrect evaluation of permissions. This issue could allow an attacker to bypass the security policy altogether, resulting in unauthorized endpoint access and possibly a denial of service.
CVE-2023-1108 High 2023-09-14 No exploit published No public exploit A flaw was found in undertow. This issue makes achieving a denial of service possible due to an unexpected handshake status updated in SslConduit, where the loop never terminates.
CVE-2019-14841 High 2022-10-17 No exploit published No public exploit A flaw was found in the RHDM, where an authenticated attacker can change their assigned role in the response header. This flaw allows an attacker to gain admin privileges in the Business Central Console.
CVE-2019-14839 High 2022-04-01 No exploit published No public exploit It was observed that while login into Business-central console, HTTP request discloses sensitive information like username and password when intercepted using some tool like burp suite etc.
CVE-2021-3642 Medium 2021-08-05 No exploit published No public exploit A flaw was found in Wildfly Elytron in versions prior to 1.10.14.Final, prior to 1.15.5.Final and prior to 1.16.1.Final where ScramServer may be susceptible to Timing Attack if enabled. The highest threat of this vulnerability is confidentiality.
CVE-2021-20306 Medium 2021-06-01 No exploit published No public exploit A flaw was found in the BPMN editor in version jBPM 7.51.0.Final. Any authenticated user from any project can see the name of Ruleflow Groups from other projects, despite the user not having access to those projects. The highest threat from this vulnerability is to confidentiality.
CVE-2020-10714 High 2020-09-23 No exploit published No public exploit A flaw was found in WildFly Elytron version 1.11.3.Final and before. When using WildFly Elytron FORM authentication with a session ID in the URL, an attacker could perform a session fixation attack. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2020-1748 High 2020-09-16 No exploit published No public exploit A flaw was found in all supported versions before wildfly-elytron-1.6.8.Final-redhat-00001, where the WildFlySecurityManager checks were bypassed when using custom security managers, resulting in an improper authorization. This flaw leads to information exposure by unauthenticated access to secure resources.
CVE-2019-14886 Medium 2020-03-05 No exploit published No public exploit A vulnerability was found in business-central, as shipped in rhdm-7.5.1 and rhpam-7.5.1, where encoded passwords are stored in errai_security_context. The encoding used for storing the passwords is Base64, not an encryption algorithm, and any recovery of these passwords could lead to user passwords being exposed.
CVE-2019-14892 Critical 2020-03-02 No exploit published No public exploit A flaw was discovered in jackson-databind in versions before 2.9.10, 2.8.11.5 and 2.6.7.3, where it would permit polymorphic deserialization of a malicious object using commons-configuration 1 and 2 JNDI classes. An attacker could use this flaw to execute arbitrary code.