# CVE-2025-5791: Users: `root` appended to group listings

Status: published. Published: 2025-06-06. Updated: 2026-11-04.

A flaw was found in the user's crate for Rust. This vulnerability allows privilege escalation via incorrect group listing when a user or process has fewer than exactly 1024 groups, leading to the erroneous inclusion of the root group in the access list.

## Remediation

No remediation reported in collected sources

## Affected products and versions

-  /  (rust-users): ≥ 0.8.0; < 0.11.1 (affected, semver). Source: CNA: redhat
- Red Hat / Red Hat OpenShift sandboxed containers 1.10 (openshift-sandboxed-containers/osc-rhel9-operator): ≥ 1.10-1753885668; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (rust-ssh-key-dir): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (rust-afterburn): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4 (kata-containers): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4 (rust-afterburn): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Trusted Profile Analyzer (rhtpa/rhtpa-trustification-service-rhel9): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N; source: CNA: redhat

- CVSS 3.1: 7.1 (high); CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N; source: NVD: secalert@redhat.com

- CISA KEV: No listing in collected sources

- EPSS: 0.21% as of 2026-11-04; percentile 10.64%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-266

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2025:12359 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2025-5791 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2370001 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://crates.io/crates/users (CNA: redhat)

- https://github.com/ogham/rust-users/issues/44 (CNA: redhat)

- https://rustsec.org/advisories/RUSTSEC-2025-0040.html (CNA: redhat)

- https://access.redhat.com/errata/RHSA-2025:12359 (secalert@redhat.com)

- https://access.redhat.com/security/cve/CVE-2025-5791 (secalert@redhat.com)

- https://bugzilla.redhat.com/show_bug.cgi?id=2370001 (secalert@redhat.com)

- https://crates.io/crates/users (secalert@redhat.com)

- https://github.com/ogham/rust-users/issues/44 (secalert@redhat.com)

- https://rustsec.org/advisories/RUSTSEC-2025-0040.html (secalert@redhat.com)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2025-5791; retrieved 2026-11-04; source updated 2026-11-04

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-5791; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2025-5791; retrieved 2026-11-04; source updated Not reported

Revision: de715e064d701d02c250d3890d466dda45a8e944ff5ac8dd2940b093b833fa5e

Canonical: https://y2.dev/cve/CVE-2025-5791

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.