CVE-2021-22568

Name: CVE-2021-22568
Creator: NVD / NIST
Published: 2021-12-09T17:15:07.567+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2021-22568 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.91%

55.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dart	Dart Software Development Kit	< 2.15.0

References

https://github.com/dart-lang/sdk/blob/main/CHANGELOG.mdPatch, Third Party Advisory
https://github.com/dart-lang/sdk/commit/d787e78d21e12ec1ef712d229940b1172aafcdf8Patch, Third Party Advisory
https://github.com/dart-lang/sdk/security/advisories/GHSA-r32f-vhjp-qhj7Issue Tracking
https://github.com/dart-lang/sdk/blob/main/CHANGELOG.mdPatch, Third Party Advisory
https://github.com/dart-lang/sdk/commit/d787e78d21e12ec1ef712d229940b1172aafcdf8Patch, Third Party Advisory
https://github.com/dart-lang/sdk/security/advisories/GHSA-r32f-vhjp-qhj7Issue Tracking

Timeline

Published: Dec 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22568?

How severe is CVE-2021-22568?

CVE-2021-22568 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22568?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22568?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST