CVE-2026-73036 MEDIUM

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

Vendor Bash-It
Product Bash-it
Weakness CWE-150
Published August 11, 2026
Last update August 11, 2026

CVSS base score

4.6/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

August 11, 2026 CVE published