- CVSS
- MEDIUM · 4.4v3.1CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- Published
- 2026-08-11
- Weakness
- CWE-150
- Source
- nvd.nist.gov/vuln/detail/CVE-2026-73036
Description
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.
References
- https://github.com/Bash-it/bash-it
- https://github.com/Bash-it/bash-it/commit/fab8f57818f28bfc6f2a81f86a58981c4ea72e5a
- https://github.com/Bash-it/bash-it/issues/2396
- https://github.com/Bash-it/bash-it/pull/2397
- https://www.vulncheck.com/advisories/bash-it-barbuk-theme-terminal-escape-sequence-injection-via-pyproject-toml
How GTK Cyber trains on this
AI security training at GTK Cyber covers the LLM and ML-pipeline vulnerability classes that vulnerabilities like CVE-2026-73036 fall into. Our hands-on courses are taught by Charles Givre and other practitioners who break and defend production AI systems.