This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-102474 →

DEBIAN-CVE-2026-102474

A flaw was found in dash. The printf builtin reserves four bytes before converting a Unicode \u or \U escape, but the multi-byte token can need five o...

Original description

The description as published by the source.

A flaw was found in dash. The printf builtin reserves four bytes before converting a Unicode \u or \U escape, but the multi-byte token can need five or six bytes. A local user who can supply such an escape to dash printf or echo %b, including through dash -c and a positional argument, can write one or two bytes past that reservation.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 dash

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 dash

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 dash

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

advisory security-tracker.debian.org