What’s Vulnerable › Vulnerabilities

CVE-2026-100866: onefetch through 2.28.1 Terminal Escape Sequence Injection

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-27 · updated 2026-09-30
• Weakness: CWE-150

Description

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.

Affected products

• o2sh onefetch: through 2.28.1

References

• https://github.com/o2sh/onefetch
• 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/issues/1828
• https://www.vulncheck.com/advisories/onefetch-through-2.28.1-terminal-escape-sequence-injection

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