Salt contains an authentication protocol version downgrade weakness that can allow a malicious minion to bypass newer authentication/security features by using an older request payload format, enabling minion impersonation and circumventing protections introduced in response to prior issues.
Advisories

No advisories yet.

Fixes

Solution

Upgrade Salt to a version that includes the authentication protocol downgrade fix and supports enforcing minimum authentication protocol versions (e.g., 3006.17+ on the 3006 line or 3007.9+ on the 3007 line). Ensure the Salt master enforces a safe minimum by using the minimum_auth_version configuration option (default 3 in fixed releases).


Workaround

If you must keep older minions temporarily, control exposure by upgrading the master first and using minimum_auth_version according to Salt guidance: fixed releases default to enforcing protocol v3+. If older minions cannot authenticate, temporarily set minimum_auth_version: 0 during a controlled upgrade window, then upgrade minions and restore the stricter minimum.

History

Fri, 30 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 30 Jan 2026 19:15:00 +0000

Type Values Removed Values Added
Description Salt contains an authentication protocol version downgrade weakness that can allow a malicious minion to bypass newer authentication/security features by using an older request payload format, enabling minion impersonation and circumventing protections introduced in response to prior issues.
Title Salt Master authentication protocol downgrade may enable minion impersonation
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L'}

cvssV4_0

{'score': 7.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-01-30T19:30:53.376Z

Reserved: 2025-10-10T10:06:33.841Z

Link: CVE-2025-62349

cve-icon Vulnrichment

Updated: 2026-01-30T19:30:46.828Z

cve-icon NVD

Status : Received

Published: 2026-01-30T19:16:11.770

Modified: 2026-01-30T19:16:11.770

Link: CVE-2025-62349

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses