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 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.
DEBIAN-CVE-2026-102474
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-102474
dash
Source reference: /affected/0/package/name
- Affected versions
- 0.5.12+git20240518+f47009f9a76e-1
Source reference:
/affected/0/versions0.5.12+git20240518+f47009f9a76e-2Source reference:
/affected/0/versions0.5.12-10Source reference:
/affected/0/versions0.5.12-11Source reference:
/affected/0/versions0.5.12-12Source reference:
/affected/0/versions0.5.12-2Source reference:
/affected/0/versions0.5.12-3Source reference:
/affected/0/versions0.5.12-4Source reference:
/affected/0/versions0.5.12-5Source reference:
/affected/0/versions0.5.12-6Source reference:
/affected/0/versions0.5.12-7Source reference:
/affected/0/versions0.5.12-8Source reference:
/affected/0/versions0.5.12-9Source reference:
/affected/0/versions0.5.13.5-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
dash
Source reference: /affected/1/package/name
- Affected versions
- 0.5.12+git20240518+f47009f9a76e-1
Source reference:
/affected/1/versions0.5.12+git20240518+f47009f9a76e-2Source reference:
/affected/1/versions0.5.12-12Source reference:
/affected/1/versions0.5.13.5-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
dash
Source reference: /affected/2/package/name
- Affected versions
- 0.5.12+git20240518+f47009f9a76e-1
Source reference:
/affected/2/versions0.5.12+git20240518+f47009f9a76e-2Source reference:
/affected/2/versions0.5.12-12Source reference:
/affected/2/versions0.5.13.5-1Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "dash",
"purl": "pkg:deb/debian/dash?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.5.12+git20240518+f47009f9a76e-1",
"0.5.12+git20240518+f47009f9a76e-2",
"0.5.12-10",
"0.5.12-11",
"0.5.12-12",
"0.5.12-2",
"0.5.12-3",
"0.5.12-4",
"0.5.12-5",
"0.5.12-6",
"0.5.12-7",
"0.5.12-8",
"0.5.12-9",
"0.5.13.5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102474.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "dash",
"purl": "pkg:deb/debian/dash?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.5.12+git20240518+f47009f9a76e-1",
"0.5.12+git20240518+f47009f9a76e-2",
"0.5.12-12",
"0.5.13.5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102474.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "dash",
"purl": "pkg:deb/debian/dash?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0.5.12+git20240518+f47009f9a76e-1",
"0.5.12+git20240518+f47009f9a76e-2",
"0.5.12-12",
"0.5.13.5-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102474.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #37082 · Revision 1
- Added to Heist Feed
- Publisher date