CVE-2026-102474

Published: Sep 29, 2026Modified: Sep 29, 2026

4.0

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Exploitability: 2.5 / Impact: 1.4

Source: secalert@redhat.com (Secondary)

Description

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.

Related CWEs

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (2)

https://access.redhat.com/security/cve/CVE-2026-102474

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2543004

Source: secalert@redhat.com

Timeline

No history available yet.