spaceship-prompt through 4.22.5 Terminal Escape Sequence Injection

Advisories

spaceship-prompt through 4.22.5 Terminal Escape Sequence Injection

severity: medium
date: 9/27/2026
Affecting: spaceship-prompt <= 4.22.5
CVE: CVE-2026-100867
CWE: CWE-150 Improper Neutralization of Escape, Meta, or Control Sequences
CVSS: 4.8
CVSS V4 Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
References: GitHub Issue #1567
https://github.com/spaceship-prompt/spaceship-prompt/blob/fd0d6653a134fe28f498eae1784fbb46d27f20f3/lib/section.zsh#L100-L102
https://github.com/spaceship-prompt/spaceship-prompt/blob/fd0d6653a134fe28f498eae1784fbb46d27f20f3/sections/package.zsh#L41
https://github.com/spaceship-prompt/spaceship-prompt
Credit: George Chen
Description: spaceship-prompt through 4.22.5 fails to sanitize control characters from project manifest version fields before rendering them in the zsh prompt. Attackers can embed ANSI/OSC escape sequences in version fields of package manifests to manipulate terminal output, rewrite window titles, or spoof displayed text when victims enter the directory.

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