CWE-349 35 CVEs MITRE definition ↗

CWE-349: Acceptance of Extraneous Untrusted Data With Trusted Data

Overview

CWE-349 (Acceptance of Extraneous Untrusted Data With Trusted Data) documents a weakness type used across vulnerability databases and security assessments. Use the sections below for definition, context, and mapped CVEs.

Security impact
Security impact: Depends on product and context; use CVE records, severity scores, and MITRE guidance to prioritize.

Description

The product, when processing trusted data, accepts any untrusted data that is also included with the trusted data, treating the untrusted data as if it were trusted.

Applicable platforms

Kind Name Class Prevalence OS / CPE
language Not Language-Specific Undetermined

Related CVEs in this database

These CVEs are mapped to this weakness in this database and kept for traceability and search.

CVE Published Summary
CVE-2026-46342 2026-06-12 Nuxt is an open-source web development framework for Vue.js. In Nuxt versions 3.1.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6 and @nuxt/nitro-server versions 3.20.0 to before 3.21.6 and 4.0.0…
CVE-2026-42960 2026-05-20 NLnet Labs Unbound up to and including version 1.25.0 is vulnerable to poisoning via promiscuous records for the authority section. Promiscuous RRSets that complement DNS replies in the authority sect…
CVE-2026-44572 2026-05-13 Next.js is a React framework for building full-stack web applications. From 12.2.0 to before 15.5.16 and 16.2.5, an external client could send a x-nextjs-data header on a normal request to a path hand…
CVE-2026-32162 2026-04-14 Acceptance of extraneous untrusted data with trusted data in Windows COM allows an unauthorized attacker to elevate privileges locally.
CVE-2026-35641 2026-04-10 OpenClaw before 2026.3.24 contains an arbitrary code execution vulnerability in local plugin and hook installation that allows attackers to execute malicious code by crafting a .npmrc file with a git …
CVE-2026-1642 2026-02-04 A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers. An attacker with a man-in-the-middle (MITM) position on the upstream ser…
CVE-2025-68269 2025-12-16 In JetBrains IntelliJ IDEA before 2025.3 missing confirmation allowed opening of untrusted remote projects over SSH
CVE-2025-1680 2025-10-23 An acceptance of extraneous untrusted data with trusted data vulnerability has been identified in Moxa’s Ethernet switches, which allows attackers with administrative privileges to manipulate HTTP Hos…
CVE-2025-40778 2025-10-22 Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache. This issue affects BIND 9 versions 9.11.0 through 9.16.…
CVE-2025-11411 2025-10-22 NLnet Labs Unbound up to and including version 1.24.1 is vulnerable to possible domain hijack attacks. Promiscuous NS RRSets that complement positive DNS replies in the authority section can be used t…
CVE-2025-11703 2025-10-18 The WP Go Maps (formerly WP Google Maps) plugin for WordPress is vulnerable to Cache Poisoning in all versions up to, and including, 9.0.48. This is due to the plugin not serving cached data from serv…
CVE-2025-5994 2025-07-16 A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that support EDNS Client Subnet (ECS). Unbound is also vulnerable when compiled with ECS…
CVE-2025-40776 2025-07-16 A `named` caching resolver that is configured to send ECS (EDNS Client Subnet) options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9…
CVE-2025-48804 2025-07-08 Acceptance of extraneous untrusted data with trusted data in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
CVE-2025-46339 2025-06-04 FreshRSS is a self-hosted RSS feed aggregator. Prior to version 1.26.2, it's possible to poison feed favicons by adding a given URL as a feed with the proxy set to an attacker-controlled one and disab…
CVE-2025-20255 2025-05-21 A vulnerability in client join services of Cisco Webex Meetings could allow an unauthenticated, remote attacker to manipulate cached HTTP responses within the meeting join service. This vulnerabili…
CVE-2025-29842 2025-05-13 Acceptance of extraneous untrusted data with trusted data in UrlMon allows an unauthorized attacker to bypass a security feature over a network.
CVE-2025-29816 2025-04-08 Improper input validation in Microsoft Office Word allows an unauthorized attacker to bypass a security feature over a network.
CVE-2025-27415 2025-03-19 Nuxt is an open-source web development framework for Vue.js. Prior to 3.16.0, by sending a crafted HTTP request to a server behind an CDN, it is possible in some circumstances to poison the CDN cache …
CVE-2024-53848 2024-11-29 check-jsonschema is a CLI and set of pre-commit hooks for jsonschema validation. The default cache strategy uses the basename of a remote schema as the name of the file in the cache, e.g. `https://exa…

Previous names

  • Untrusted Data Appended with Trusted Data (2008-04-11)

Content submission

Name
PLOVER
Date
2006-07-19
Version
Draft 3

Content modifications

Date Name Version Importance Comment
2008-07-01 Eric Dalci 1.0 updated Time_of_Introduction
2008-09-08 CWE Content Team 1.0 updated Relationships, Taxonomy_Mappings
2011-06-01 CWE Content Team 1.13 updated Common_Consequences, Relationships, Taxonomy_Mappings
2012-05-11 CWE Content Team 2.2 updated Common_Consequences, Related_Attack_Patterns, Relationships, Taxonomy_Mappings
2014-07-30 CWE Content Team 2.8 updated Relationships
2017-11-08 CWE Content Team 3.0 updated Applicable_Platforms, Modes_of_Introduction, Relationships
2019-01-03 CWE Content Team 3.2 updated Relationships, Taxonomy_Mappings
2020-02-24 CWE Content Team 4.0 updated Relationships
2020-06-25 CWE Content Team 4.1 updated Observed_Examples, Relationships
2022-04-28 CWE Content Team 4.7 updated Relationships
2023-01-31 CWE Content Team 4.10 updated Description
2023-04-27 CWE Content Team 4.11 updated Modes_of_Introduction, Relationships, Time_of_Introduction
2023-06-29 CWE Content Team 4.12 updated Mapping_Notes, Relationships
2025-12-11 CWE Content Team 4.19 updated Relationships, Weakness_Ordinalities
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