VYPR

CWE-436

Interpretation Conflict

ClassIncomplete

Description

Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.

This is generally found in proxies, firewalls, anti-virus software, and other intermediary devices that monitor, allow, deny, or modify traffic based on how the client or server is expected to behave.

Hierarchy (View 1000)

Related attack patterns (CAPEC)

CAPEC-105 · CAPEC-273 · CAPEC-34

CVEs mapped to this weakness (143)

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  • CVE-2021-21366MedMar 12, 2021
    risk 0.21cvss 4.3epss 0.01

    xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. xmldom versions 0.4.0 and older do not correctly preserve system identifiers, FPIs or namespaces when repeatedly parsing and serializing maliciously crafted documents. This…

  • CVE-2026-18246LowAug 12, 2026
    risk 0.20cvss 3.0epss 0.00

    IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions due to an interpretation conflict in the multipart parser.

  • CVE-2026-59882MedJul 8, 2026
    risk 0.20cvss 4.2epss 0.00

    guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Prior to 2.12.3, Uri::assertValidHost() does not reject URI host components containing authority delimiters, embedded ports, or malformed IPv6 brackets, allowing Uri::getHost() to disagree with the URI…

  • CVE-2025-1217LowMar 29, 2025
    risk 0.20cvss 3.1epss 0.01

    In PHP from 8.1.* before 8.1.32, from 8.2.* before 8.2.28, from 8.3.* before 8.3.19, from 8.4.* before 8.4.5, when http request module parses HTTP response obtained from a server, folded headers are parsed incorrectly, which may lead to misinterpreting the response and using…

  • CVE-2024-42487MedAug 15, 2024
    risk 0.19cvss 4.0epss 0.01

    Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In the 1.15 branch prior to 1.15.8 and the 1.16 branch prior to 1.16.1, Gateway API HTTPRoutes and GRPCRoutes do not follow the match precedence specified in the Gateway API specification.…

  • CVE-2026-53538LowJun 22, 2026
    risk 0.17cvss 3.7epss 0.00

    Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.30, QuerystringParser treated ; as a field separator in application/x-www-form-urlencoded bodies, in addition to &. The WHATWG URL standard, modern browsers, and Python's urllib.parse (since the…

  • CVE-2026-53537LowJun 22, 2026
    risk 0.17cvss 3.7epss 0.00

    Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.30, parse_options_header parsed Content-Disposition (and Content-Type) headers with email.message.Message, which transparently applies RFC 2231/5987 decoding. The extended parameter syntax…

  • CVE-2026-26961LowApr 2, 2026
    risk 0.17cvss 3.7epss 0.00

    Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser extracts the boundary parameter from multipart/form-data using a greedy regular expression. When a Content-Type header contains multiple boundary parameters, Rack…

  • CVE-2024-24754LowFeb 1, 2024
    risk 0.17cvss 3.7epss 0.01

    Bref enable serverless PHP on AWS Lambda. When Bref is used with the Event-Driven Function runtime and the handler is a `RequestHandlerInterface`, then the Lambda event is converted to a PSR7 object. During the conversion process, if the request is a MultiPart, each part is…

  • CVE-2022-29254LowJun 9, 2022
    risk 0.17cvss 3.7epss 0.01

    silverstripe-omnipay is a SilverStripe integration with Omnipay PHP payments library. For a subset of Omnipay gateways (those that use intermediary states like `isNotification()` or `isRedirect()`), if the payment identifier or success URL is exposed it is possible for payments…

  • CVE-2026-47344LowJun 8, 2026
    risk 0.07cvss epss 0.00

    When ALLOW_INSECURE_RAW_TEXT is enabled, whitespace-variant closing tags (e.g., </style\t>) are not recognized by the sanitizer but accepted by browsers as valid end tags, allowing subsequent content to escape sanitization. This allows bypassing the cross-site scripting…

  • CVE-2026-67201HigJul 29, 2026
    risk 0.00cvss 8.6epss 0.00

    V through 0.5.2, fixed in commit 85859f0, contains a server-side request forgery (SSRF) bypass vulnerability that allows attackers to circumvent host-based allowlists by exploiting a parser differential between net.urllib and net.http. Attackers can craft a URL containing a…

  • CVE-2026-56329MedJul 10, 2026
    risk 0.00cvss 6.4epss 0.00

    Capgo before 12.128.2 contains a cross-tenant preview namespace collision vulnerability caused by non-bijective decoding of double underscores to dots in preview hostname parsing. Attackers can register app IDs with underscores that collide with other tenants' dotted app IDs,…

  • CVE-2026-56669HigJul 8, 2026
    risk 0.00cvss 7.5epss 0.00

    Elysia is a Typescript framework for request validation, type inference, OpenAPI documentation, and client-server communication. Prior to 1.4.29, Elysia uses getAll in form data normalization for multipart/form-data endpoints, causing the amount of work to grow quadratically…

  • CVE-2024-55629HigJan 6, 2025
    risk 0.00cvss 7.5epss 0.01

    Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.8, TCP streams with TCP urgent data (out of band data) can lead to Suricata analyzing data differently than the applications at the TCP endpoints,…

  • CVE-2023-49284LowDec 5, 2023
    risk 0.00cvss 3.9epss 0.00

    fish is a smart and user-friendly command line shell for macOS, Linux, and the rest of the family. fish shell uses certain Unicode non-characters internally for marking wildcards and expansions. It will incorrectly allow these markers to be read on command substitution output,…

  • CVE-2023-36456HigJul 6, 2023
    risk 0.00cvss 8.3epss 0.01

    authentik is an open-source Identity Provider. Prior to versions 2023.4.3 and 2023.5.5, authentik does not verify the source of the X-Forwarded-For and X-Real-IP headers, both in the Python code and the go code. Only authentik setups that are directly accessible by users without…

  • CVE-2023-22998MedFeb 28, 2023
    risk 0.00cvss 5.5epss 0.00

    In the Linux kernel before 6.0.3, drivers/gpu/drm/virtio/virtgpu_object.c misinterprets the drm_gem_shmem_get_sg_table return value (expects it to be NULL in the error case, whereas it is actually an error pointer).

  • CVE-2023-22735MedFeb 7, 2023
    risk 0.00cvss 4.4epss 0.01

    Zulip is an open-source team collaboration tool. In versions of zulip prior to commit `2f6c5a8` but after commit `04cf68b` users could upload files with arbitrary `Content-Type` which would be served from the Zulip hostname with `Content-Disposition: inline` and no…

  • CVE-2022-48279HigJan 20, 2023
    risk 0.00cvss 7.5epss 0.01

    In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered independent changes to the ModSecurity (C language) codebase.