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Weakness

Acceptance of Extraneous Untrusted Data With Trusted Data

CWE-349 · Base · Draft

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.

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Weakness Relationships

Where this weakness sits in the CWE hierarchy. Walk up to broader classes or down to more specific variants.
Parent of this (broader)
ChildOfCWE-345 · Insufficient Verification of Data Authenticity
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Attack Patterns (CAPEC)

3
How adversaries exploit this weakness, per MITRE CAPEC.
CAPEC-141Cache Poisoning
CAPEC-142DNS Cache Poisoning
CAPEC-75Manipulating Writeable Configuration Files
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CVEs With This Weakness

33
A sample of the 33 CVEs tagged with this weakness.
CVECVE-2026-44572
CVECVE-2026-35641
CVECVE-2026-32162
CVECVE-2026-1642
CVECVE-2025-68269
CVECVE-2025-5994
CVECVE-2025-48804
CVECVE-2025-46339
CVECVE-2025-40778
CVECVE-2025-40776
CVECVE-2025-29842
CVECVE-2025-29816
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