CVE-2026-126820: Debian/cpio vulnerability

Q: What input would need to be processed for this issue to be reached?

The issue is reached when cpio parses an archive that uses newc or crc archive headers.

Q: Which software is identified as affected?

The listed affected software is the Debian cpio package.

Published Nov 14, 2026

Updated

cpio: out-of-bounds read in fromascii() when parsing newc/crc archive headers

Affected Software

4 affected components

debian/cpio*

debian/cpio<=2.13+dfsg-7.1, <=2.15+dfsg-2, <=2.15+dfsg-2.1

Event History

Nov 14, 2026

CVE Published

via OSV·02:47 PM

Data Sourced

via OSV·02:47 PM

DescriptionAffected Software

Frequently Asked Questions

What input would need to be processed for this issue to be reached?

The issue is reached when cpio parses an archive that uses newc or crc archive headers.

Which software is identified as affected?

The listed affected software is the Debian cpio package.

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