- CVSS
- MEDIUM · 6.1v3.1CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
- Published
- 2026-08-13
- Weakness
- CWE-150
- Source
- nvd.nist.gov/vuln/detail/CVE-2026-73506
Description
Oh My Posh is the most customisable and low-latency cross platform/shell prompt renderer. Prior to 29.35.1, write(s rune) in src/terminal/writer.go emitted attacker-controlled current directory names and Git metadata, including Commit.Subject, Commit.Author.Name, Commit.Author.Email, and RawUpstreamURL, without removing C0/C1 terminal control characters such as ESC, BEL, CSI, and OSC, allowing terminal escape sequence injection during prompt rendering that could overwrite the clipboard, spoof the prompt or screen, manipulate the window title, or disrupt the terminal. This issue is fixed in version 29.35.1.
References
- https://github.com/JanDeDobbeleer/oh-my-posh/commit/edcf3c88f3fb582e84358b385c49d33d04c04224
- https://github.com/JanDeDobbeleer/oh-my-posh/pull/7711
- https://github.com/JanDeDobbeleer/oh-my-posh/releases/tag/v29.35.1
- https://github.com/JanDeDobbeleer/oh-my-posh/security/advisories/GHSA-fwjx-9p69-h25h
- https://github.com/Budibase/budibase/security/advisories/GHSA-fcrw-f7gg-6g9f
How GTK Cyber trains on this
AI security training at GTK Cyber covers the LLM and ML-pipeline vulnerability classes that vulnerabilities like CVE-2026-73506 fall into. Our hands-on courses are taught by Charles Givre and other practitioners who break and defend production AI systems.