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CVE-2021-22568

27
FAUCET Score

CVE-2021-22568 describes a vulnerability in the Dart SDK where the 'dart pub publish' command could inadvertently expose an oauth2 access_token valid for pub.dev when publishing to a third-party server. This allows an attacker to impersonate the user on pub.dev. With a CVSS score of 8.8 (HIGH), this vulnerability has a network attack vector, low attack complexity, and could lead to high impact on integrity and low impact on confidentiality and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, upgrading to Dart SDK version 2.15.0 or later is recommended to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.15.0CPE matchmatch criteria
cpe:2.3:a:dart:dart_software_development_kit:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
5.3
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0092 is in the 58th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / dart-lang/sdk/blob/main/CHANGELOG.md
PatchThird Party Advisory
github.com / dart-lang/sdk/commit/d787e78d21e12ec1ef712d229940b1172aafcdf8
PatchThird Party Advisory
github.com / dart-lang/sdk/security/advisories/GHSA-r32f-vhjp-qhj7
Issue Tracking