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Bidda Sovereign Intelligence · 10,065 Verified Nodes · 39 Sovereign Pillars

MITRE CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic (Detailed Attack Pattern - High Severity)

MITRE CAPEC-80 (Using UTF-8 Encoding to Bypass Validation Logic) is a detailed-level attack pattern in the MITRE Common Attack Pattern Enumeration and…

Compliance Node Overview

MITRE CAPEC-80 (Using UTF-8 Encoding to Bypass Validation Logic) is a detailed-level attack pattern in the MITRE Common Attack Pattern Enumeration and Classification. This attack is a specific variation on leveraging alternate encodings to bypass validation logic. This attack leverages the possibility to encode potentially harmful input in UTF-8 and submit it to applications not expecting or effective at validating this encoding standard making input filtering difficult. UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. Likelihood of attack: High. Typical severity: High. Maps to weaknesses CWE-173, CWE-172, CWE-180, CWE-181, and others.

Pillar: Cybersecurity · Authority: MITRE Corporation · Version: 1.0.0 · Last updated: 2026-05-25

Primary source: https://capec.mitre.org/data/definitions/80.html

SHA-256 integrity: b46198aad2cdbb667bb77d608d2243f298b1cd8e4bceae828d127e98e9359d3b

Primary Citations — 10 traced to source

MITRE CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic (https://capec.mitre.org/data/definitions/80.html)
CWE-173: underlying weakness (http://cwe.mitre.org/data/definitions/173.html)

+ 8 more citations (full bibliography, deterministic workflow, actionable schema and crosswalks) included in the vault unlock — $0.01 via Skyfire / L402 / Direct Base USDC.

Access

Discovery (free): /api/v1/nodes/mitre-capec-capec-80-using-utf-8-encoding-to-bypass-validation-logic.json — 6-field metadata
Vault (full node): /api/v1/vault/nodes/mitre-capec-capec-80-using-utf-8-encoding-to-bypass-validation-logic.json — full 13-key payload, $0.01 USDC (L402/Skyfire/Direct Base)
Canonical URL: https://bidda.com/intelligence/mitre-capec-capec-80-using-utf-8-encoding-to-bypass-validation-logic
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