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2 vulnerabilities found for sys by moby
CVE-2026-61801 (GCVE-0-2026-61801)
Vulnerability from nvd – Published: 2026-10-08 16:22 – Updated: 2026-10-08 17:27
VLAI
EPSS
VEX
Title
github.com/moby/sys/user has a possible DoS via unbounded parsing of user and group database files
Summary
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.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 17:27 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/moby/sys/security/advisories/G… | x_refsource_CONFIRM |
| https://github.com/moby/sys/pull/221 | x_refsource_MISC |
| https://github.com/moby/sys/commit/85a71bbe1faa36… | x_refsource_MISC |
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CVE-2026-61801 (GCVE-0-2026-61801)
Vulnerability from cvelistv5 – Published: 2026-10-08 16:22 – Updated: 2026-10-08 17:27
VLAI
EPSS
VEX
Title
github.com/moby/sys/user has a possible DoS via unbounded parsing of user and group database files
Summary
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.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 17:27 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/moby/sys/security/advisories/G… | x_refsource_CONFIRM |
| https://github.com/moby/sys/pull/221 | x_refsource_MISC |
| https://github.com/moby/sys/commit/85a71bbe1faa36… | x_refsource_MISC |
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