CVE-2021-22567

MEDIUM

Dart Software Development Kit < 2.15.0 - Improper Access Control via Bidirectional Unicode Text

Title source: llm

Description

Bidirectional Unicode text can be interpreted and compiled differently than how it appears in editors which can be exploited to get nefarious code passed a code review by appearing benign. An attacker could embed a source that is invisible to a code reviewer that modifies the behavior of a program in unexpected ways.

References (2)

Core 2

Core References

Release Notes, Third Party Advisory x_refsource_misc

https://github.com/dart-lang/sdk/blob/main/CHANGELOG.md

View Writeup ZIP pw:eip

Patch, Third Party Advisory x_refsource_misc

https://github.com/dart-lang/sdk/commit/52519ea8eb4780c468c4c2ed00e7c8046ccfed41

View Patch ZIP pw:eip

Scores

CVSS v3 4.6

EPSS 0.0060

EPSS Percentile 44.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-284

Status published

Products (1)

dart/dart_software_development_kit < 2.15.0

Published Jan 05, 2022

Tracked Since Feb 18, 2026