CVE-2021-28793

Name: CVE-2021-28793
Creator: NVD / NIST
Published: 2021-04-20T13:15:12.493+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.63%

Last modified Jun 17, 2026

CVE-2021-28793 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. vscode-restructuredtext before 146.0.0 contains an incorrect access control vulnerability, where a crafted project folder could execute arbitrary binaries via crafted workspace configuration.. EPSS estimates a 1.63% chance of exploitation in the next 30 days.

Description

vscode-restructuredtext before 146.0.0 contains an incorrect access control vulnerability, where a crafted project folder could execute arbitrary binaries via crafted workspace configuration.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.63%

73.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Lextudio	Restructuredtext	< 147.0.0

References

https://github.com/vscode-restructuredtext/vscode-restructuredtext/commit/1dd3e878a5559e3dfe0e48f145c90418b208c5afPatch, Third Party Advisory
https://github.com/vscode-restructuredtext/vscode-restructuredtext/releasesRelease Notes, Third Party Advisory
https://github.com/vscode-restructuredtext/vscode-restructuredtext/releases/tag/147.0.0Release Notes, Third Party Advisory
https://vuln.ryotak.me/advisories/37Third Party Advisory
https://github.com/vscode-restructuredtext/vscode-restructuredtext/commit/1dd3e878a5559e3dfe0e48f145c90418b208c5afPatch, Third Party Advisory
https://github.com/vscode-restructuredtext/vscode-restructuredtext/releasesRelease Notes, Third Party Advisory
https://github.com/vscode-restructuredtext/vscode-restructuredtext/releases/tag/147.0.0Release Notes, Third Party Advisory
https://vuln.ryotak.me/advisories/37Third Party Advisory

Timeline

Published: Apr 20, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-28793?

vscode-restructuredtext before 146.0.0 contains an incorrect access control vulnerability, where a crafted project folder could execute arbitrary binaries via crafted workspace configuration.

How severe is CVE-2021-28793?

CVE-2021-28793 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.63% probability of exploitation in the next 30 days.

How do I fix CVE-2021-28793?

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-2021-28793?

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

Scan your code now

Source: NVD / NIST