Critical
Incorrect parsing of the backslash characters in Dart library
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2022-3095
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 04:40 UTC · Revision 1
Source evidence
Incorrect parsing of the backslash characters in Dart library
core-osv · Original sourcePublished 27 Oct 2022, 00:00 UTC
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.
osv:CVE-2022-3095
Complete source record
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"modified": "2026-10-28T02:30:25.672282262Z",
"provider": "osv",
"references": [
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