Improper input validation in Dart Software Development Kit
CVE-2022-3095
The implementation of backslash parsing in the Dart URI class for versions prior to 2.18 and Flutter versions prior to 3.30 differs from the WhatWG URL standards. Dart uses the RFC 3986 syntax, which creates incompatibilities with the '\' characters in URIs, which can lead to auth bypass in webapps interpreting URIs. We recommend updating Dart or Flutter to mitigate the issue.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (59.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000
Affected products
- Dart Software Development Kit
- Flutter
- Google Llc Dart — versions stable, Flutter
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/dart-lang/sdk/blob/master/CHANGELOG.md (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2022-3095?
- CVE-2022-3095 is a critical-severity vulnerability in Dart Software Development Kit, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2022-10-27.
- How severe is CVE-2022-3095?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-3095 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.