CVE-2026-73036: Bash-it 3.2.0 contains a terminal escape sequence injection vulnerability in the barbuk theme's Python virtualenv prompt segment that allows local
Affects bash-itSource GCVE Database
Not known to be exploited · CVSS 4.6 Medium.
Data as of 10 Nov 2026, 23:24 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 4.6 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 4.4 |
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubbash-it/bash-itpkg:github/bash-it/bash-itOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, users should avoid navigating into directories containing untrusted pyproject.toml files or disable the barbuk theme's Python virtualenv prompt segment to prevent injection of terminal escape sequences.
Description
Bash-it version 3.2.0 has a terminal escape sequence injection vulnerability in the barbuk theme's Python virtualenv prompt segment. This flaw 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 enters a directory with a crafted pyproject.toml, the unfiltered field value is read and directly concatenated into the shell prompt without filtering control characters, causing the terminal emulator to interpret injected sequences on every prompt render. This vulnerability has a medium severity rating with a CVSS score of 4.4.
References
- nvd.nist.gov/vuln/detail/CVE-2026-73036 (opens in a new tab)
- github.com/Bash-it/bash-it/issues/2396 (opens in a new tab)
- github.com/Bash-it/bash-it/pull/2397 (opens in a new tab)
- github.com/Bash-it/bash-it/commit/fab8f57818f28bfc6f2a81f86a58981c4ea72e5a (opens in a new tab)
- github.com/Bash-it/bash-it (opens in a new tab)
- vulncheck.com/advisories/bash-it-barbuk-theme-terminal-escape-sequence-injection-via-pyproject-toml (opens in a new tab)