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-2026-33808CriApr 15, 2026
    risk 0.52cvss 9.1epss 0.00

    Impact@fastify/express v4.0.4 and earlier fails to normalize URLs before passing them to Express middleware when Fastify router normalization options are enabled. This allows complete bypass of path-scoped authentication middleware via duplicate slashes when…

  • CVE-2026-33807CriApr 15, 2026
    risk 0.52cvss 9.1epss 0.00

    @fastify/express v4.0.4 and earlier contains a path handling bug in the onRegister function that causes middleware paths to be doubled when inherited by child plugins. When a child plugin is registered with a prefix that matches a middleware path, the middleware path is prefixed…

  • CVE-2022-35962HigAug 29, 2022
    risk 0.52cvss 8.0epss 0.01

    Zulip is an open source team chat and Zulip Mobile is an app for iOS and Andriod users. In Zulip Mobile through version 27.189, a crafted link in a message sent by an authenticated user could lead to credential disclosure if a user follows the link. A patch was released in…

  • CVE-2019-18792CriJan 6, 2020
    risk 0.52cvss 9.1epss 0.03

    An issue was discovered in Suricata 5.0.0. It is possible to bypass/evade any tcp based signature by overlapping a TCP segment with a fake FIN packet. The fake FIN packet is injected just before the PUSH ACK packet we want to bypass. The PUSH ACK packet (containing the data)…

  • CVE-2020-9363HigFeb 24, 2020
    risk 0.51cvss 7.8epss 0.01

    The Sophos AV parsing engine before 2020-01-14 allows virus-detection bypass via a crafted ZIP archive. This affects Endpoint Protection, Cloud Optix, Mobile, Intercept X Endpoint, Intercept X for Server, and Secure Web Gateway. NOTE: the vendor feels that this does not apply to…

  • CVE-2020-9362HigFeb 24, 2020
    risk 0.51cvss 7.8epss 0.02

    The Quick Heal AV parsing engine (November 2019) allows virus-detection bypass via a crafted GPFLAG in a ZIP archive. This affects Total Security, Home Security, Total Security Multi-Device, Internet Security, Total Security for Mac, AntiVirus Pro, AntiVirus for Server, and…

  • CVE-2026-49473HigAug 13, 2026
    risk 0.50cvss 8.8epss 0.00

    @cedar-policy/authorization-for-expressjs is an open-source Express.js middleware that integrates Cedar authorization into Express applications by mapping HTTP requests to Cedar actions and evaluating authorization policies before allowing requests to proceed. Versions prior to…

  • CVE-2026-40165HigMay 21, 2026
    risk 0.50cvss 8.7epss 0.01

    authentik is an open-source identity provider. Versions 2025.12.4 and prior, and versions 2026.2.0-rc1 through 2026.2.2 were vulnerable to Authentication Bypass through SAML NameID XML Comment Injection. Due to how authentik extracted the NameID value from a SAML assertion, it…

  • CVE-2022-36051HigAug 31, 2022
    risk 0.50cvss 8.7epss 0.01

    ZITADEL combines the ease of Auth0 and the versatility of Keycloak.**Actions**, introduced in ZITADEL **1.42.0** on the API and **1.56.0** for Console, is a feature, where users with role.`ORG_OWNER` are able to create Javascript Code, which is invoked by the system at certain…

  • CVE-2021-34699HigSep 23, 2021
    risk 0.50cvss 7.7epss 0.01

    A vulnerability in the TrustSec CLI parser of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. This vulnerability is due to an improper interaction between the web UI and the CLI parser. An attacker could…

  • CVE-2020-3200HigJun 3, 2020
    risk 0.50cvss 7.7epss 0.02

    A vulnerability in the Secure Shell (SSH) server code of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. The vulnerability is due to an internal state not being represented correctly in the SSH…

  • CVE-2026-68968HigAug 12, 2026
    risk 0.49cvss 7.5epss 0.00

    Apache Airflow's Backfill API authorized a request against a Dag id supplied by the caller whenever the `backfill_id` path segment failed to parse. The authorization dependency parsed it with `int()` while the route handler parsed it as pydantic's `NonNegativeInt`, which accepts…

  • CVE-2026-18427HigAug 6, 2026
    risk 0.49cvss 7.5epss 0.00

    @fastify/static before version 10.1.3 contains an incomplete fix for a previous route guard bypass. The static file handler rejected only parent directory segments, but it did not canonicalize dot segments, duplicate slashes, encoded dots, or backslashes before route matching…

  • CVE-2026-27444HigMar 4, 2026
    risk 0.49cvss 7.5epss 0.00

    SEPPmail Secure Email Gateway before version 15.0.1 incorrectly interprets email addresses in the email headers, causing an interpretation conflict with other mail infrastructure that allows an attacker to fake the source of the email or decrypt it.

  • CVE-2026-0958HigFeb 11, 2026
    risk 0.49cvss 7.5epss 0.00

    GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that could have allowed an unauthenticated user to cause denial of service through memory or CPU exhaustion by bypassing JSON validation…

  • CVE-2025-12816HigNov 25, 2025
    risk 0.49cvss 8.6epss 0.01

    An interpretation-conflict (CWE-436) vulnerability in node-forge versions 1.3.1 and earlier enables unauthenticated attackers to craft ASN.1 structures to desynchronize schema validations, yielding a semantic divergence that may bypass downstream cryptographic verifications and…

  • CVE-2023-40718HigOct 10, 2023
    risk 0.49cvss 7.5epss 0.00

    A interpretation conflict in Fortinet IPS Engine versions 7.321, 7.166 and 6.158 allows attacker to evade IPS features via crafted TCP packets.

  • CVE-2022-48473HigJun 16, 2023
    risk 0.49cvss 7.5epss 0.00

    There is a misinterpretation of input vulnerability in Huawei Printer. Successful exploitation of this vulnerability may cause the printer service to be abnormal.

  • CVE-2022-48471HigJun 16, 2023
    risk 0.49cvss 7.5epss 0.00

    There is a misinterpretation of input vulnerability in Huawei Printer. Successful exploitation of this vulnerability may cause the printer service to be abnormal.

  • CVE-2022-48261HigFeb 27, 2023
    risk 0.49cvss 7.5epss 0.00

    There is a misinterpretation of input vulnerability in BiSheng-WNM FW 3.0.0.325. Successful exploitation of this vulnerability may cause the printer service to be abnormal.