# CVE-2026-92745: Cockpit-machines: cockpit-machines: information disclosure of rhsm offline token via process arguments

Status: published. Published: 2026-09-18. Updated: 2026-11-11.

A flaw was found in cockpit-machines. This vulnerability allows a local attacker with the ability to inspect process metadata to disclose a sensitive Red Hat Subscription Management (RHSM) offline token. The token is exposed when it is passed as a command-line argument to a helper script during the token validation process. Successful exploitation could lead to the compromise of confidentiality, as the exposed token can be used to request access tokens.

## Remediation

- workaround: A workaround is available for this issue. Until a fixed package is installed, avoid validating RHSM offline tokens through the Cockpit Machines "Download an OS" / RHEL image download flow on multi-user hosts where untrusted local users can inspect process metadata. As a system-level mitigation, restrict /proc visibility so unprivileged users cannot read other users' process command lines, for example by remounting /proc with the hidepid=2 mount option; this blocks cross-user observation of the helper process arguments that contain the offline token while the validation flow is running. Fixed packages are being released for the affected streams, and updating to a fixed cockpit-machines package once available for your stream resolves the issue. (source: CNA: redhat)

## Affected products and versions

- Red Hat / Red Hat Enterprise Linux 10 (cockpit-machines): ≥ 0:348.1-1.el10_2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (cockpit-machines): ≥ 0:355.1-1.el10_3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (cockpit-machines): ≥ 0:348.1-1.el9_8; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (cockpit-machines): ≥ 0:355.1-1.el9_9; < * (unaffected, rpm). Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 5 (medium); CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N; source: CNA: redhat

- CVSS 3.1: 5 (medium); CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N; source: NVD: secalert@redhat.com

- CISA KEV: No listing in collected sources

- EPSS: 0.11% as of 2026-11-10; percentile 1.11%

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

- Weaknesses: CWE-214

## Exploit evidence

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

## References

- https://access.redhat.com/errata/RHSA-2026:86970 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:86971 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:98459 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:98562 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-92745 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2476266 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:86970 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:86971 (secalert@redhat.com)

- https://access.redhat.com/errata/RHSA-2026:98459 (secalert@redhat.com)

- https://access.redhat.com/security/cve/CVE-2026-92745 (secalert@redhat.com)

- https://bugzilla.redhat.com/show_bug.cgi?id=2476266 (secalert@redhat.com)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-92745; retrieved 2026-11-11; source updated 2026-11-11

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-92745; retrieved 2026-11-11; source updated 2026-11-11

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-92745; retrieved 2026-11-11; source updated Not reported

Revision: 626892cbdc473838e472be73855e750d045ba474fa288434f02aa2326bd82589

Canonical: https://y2.dev/cve/CVE-2026-92745

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