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onefetch through 2.28.1 Terminal Escape Sequence Injection

CVSS 4.0 4.8 MEDIUMCVSS 3.1 3.3 LOWCheck source for fixed versionsKEV status unknown

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-100866

Published

onefetch through 2.28.1 writes repository information field values to the terminal without removing control characters, allowing terminal escape sequence injection. Attackers can embed ANSI/OSC escape sequences in project manifest version and name fields to manipulate terminal output, rewrite window titles, hide text, or trigger emulator-specific behavior when victims run onefetch.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-100866

Published

onefetch

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "o2sh",
                    "product": "onefetch",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:cargo/onefetch",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThanOrEqual": "2.28.1"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

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Sources read 12 Nov 13:19 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current