CVE-2026-73036: Bash-it barbuk Theme 3.2.0 Terminal Escape Sequence Injection via pyproject.toml

Published Aug 11, 2026
·
Updated

Bash-it 3.2.0 contains a terminal escape sequence injection vulnerability in the barbuk theme's Python virtualenv prompt segment that allows local attackers to inject arbitrary terminal control sequences by embedding escape sequences in the requires-python field of a pyproject.toml file. When a user navigates into a directory containing a maliciously crafted pyproject.toml, the unfiltered field value is read via awk and concatenated directly into PS1 through prompt-command without stripping control characters, causing injected OSC or CSI sequences to be written to and interpreted by the terminal emulator on every prompt render.

Affected Software

1 affected component
Bash-it barbuk Theme=3.2.0

Event History

Aug 11, 2026
CVE Published
via MITRE·07:37 PM
Data Sourced
via MITRE·07:37 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·08:18 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-73036?

CVE-2026-73036 has a medium severity rating of 4.4.

2

How do I fix CVE-2026-73036?

To mitigate CVE-2026-73036, upgrade to the latest version of the Bash-it barbuk theme that addresses this vulnerability.

3

What type of vulnerability is CVE-2026-73036?

CVE-2026-73036 is a terminal escape sequence injection vulnerability.

4

Who can exploit CVE-2026-73036?

CVE-2026-73036 can be exploited by local attackers who can modify the pyproject.toml file.

5

What are the potential impacts of CVE-2026-73036?

Exploitation of CVE-2026-73036 can lead to arbitrary terminal control sequence injection, potentially compromising user terminal environments.

Contact

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