The `github.com/moby/sys/user` package provides Go utilities for parsing and looking up entries in Unix-style user and group database files. Versions before 0.4.1 do not sufficiently limit entries when parsing `/etc/passwd`- or `/etc/group`-style files, allowing an attacker who can supply a specially crafted file to cause excessive memory consumption and potentially terminate the affected process due to an out-of-memory condition. This issue is patched in version 0.4.1. As a workaround, avoid parsing attacker-controlled user or group database files, or validate and limit untrusted input before parsing it.
Metrics
Affected Vendors & Products
References
History
Fri, 09 Oct 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat
Redhat hummingbird |
|
| Weaknesses | CWE-770 | |
| CPEs | cpe:/a:redhat:hummingbird:1 | |
| Vendors & Products |
Redhat
Redhat hummingbird |
|
| References |
| |
| Metrics |
threat_severity
|
threat_severity
|
Fri, 09 Oct 2026 09:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Moby
Moby sys |
|
| Vendors & Products |
Moby
Moby sys |
Thu, 08 Oct 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 08 Oct 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The `github.com/moby/sys/user` package provides Go utilities for parsing and looking up entries in Unix-style user and group database files. Versions before 0.4.1 do not sufficiently limit entries when parsing `/etc/passwd`- or `/etc/group`-style files, allowing an attacker who can supply a specially crafted file to cause excessive memory consumption and potentially terminate the affected process due to an out-of-memory condition. This issue is patched in version 0.4.1. As a workaround, avoid parsing attacker-controlled user or group database files, or validate and limit untrusted input before parsing it. | |
| Title | github.com/moby/sys/user has a possible DoS via unbounded parsing of user and group database files | |
| Weaknesses | CWE-400 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-08T16:22:25.558Z
Updated: 2026-10-08T17:27:37.645Z
Reserved: 2026-07-10T20:06:05.617Z
Link: CVE-2026-61801
Updated: 2026-10-08T17:27:34.657Z
Status : Deferred
Published: 2026-10-08T17:17:17.433
Modified: 2026-10-08T21:35:53.890
Link: CVE-2026-61801