---
cve: "CVE-2026-100866"
severity: "MEDIUM"
cvss: 4.8
epss: "0.1%"
vendor: "o2sh"
kev: false
exploited: false
published: "2026-09-27 13:16:36"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-01T19:54:12+02:00"
---

# CVE-2026-100866

> 4.8 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-09-30 15:40:20
- CNA-CVSS: **4.8** (`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`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- 9beb80329cf2e5bd784270f668139f0bafb48e2b (Commit)

## Referenzen

- <https://github.com/o2sh/onefetch/issues/1828>
- <https://github.com/o2sh/onefetch/blob/9beb80329cf2e5bd784270f668139f0bafb48e2b/src/info/utils/info_field.rs#L43-L55>
- <https://github.com/o2sh/onefetch/blob/9beb80329cf2e5bd784270f668139f0bafb48e2b/src/info/version.rs#L33-L35>
- <https://github.com/o2sh/onefetch>
- <https://www.vulncheck.com/advisories/onefetch-through-2.28.1-terminal-escape-sequence-injection>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-100866) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_