CVE-2026-66486
NVD: GNU cpio is vulnerable to improper encoding or escaping of output in its archive member listing functionality. NVD: When listing archive members via cpio -it, member names are printed directly to output without quoting or escaping. NVD: An attacker can craft a cpio archive containing member names with embedded newline characters or ANSI escape sequences, causing forged listing entries or terminal control sequence injection when the listing is displayed.
4.6 Severity
MEDIUM EPSS
0.0014 (4) KEV
-
Source-published summary
NVD: GNU cpio is vulnerable to improper encoding or escaping of output in its archive member listing functionality. NVD: When listing archive members via cpio -it, member names are printed directly to output without quoting or escaping. NVD: An attacker can craft a cpio archive containing member names with embedded newline characters or ANSI escape sequences, causing forged listing entries or terminal control sequence injection when the listing is displayed.
Possible impact
This medium severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.
Affected context
Affected product or version requires source confirmation.
Remediation / advisory
Patch confirmed by source text; fixed version context: commit.
Why it matters
This medium severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for defensive exposure review.; CVSS 4.6 (MEDIUM); EPSS percentile 4; not listed in KEV; Patch confirmed by source text; fixed version context: commit; sources: NVD.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
exposure unknown
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.