Description
Doveadm credentials are verified using direct comparison which is susceptible to timing oracle attack. An attacker can use this to determine the configured credentials. Figuring out the credential will lead into full access to the affected component. Limit access to the doveadm http service port, install fixed version. No publicly available exploits are known.
Published: 2026-03-27
Score: 7.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

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Tracking

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Advisories

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History

Fri, 27 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Fri, 27 Mar 2026 08:30:00 +0000

Type Values Removed Values Added
Description Doveadm credentials are verified using direct comparison which is susceptible to timing oracle attack. An attacker can use this to determine the configured credentials. Figuring out the credential will lead into full access to the affected component. Limit access to the doveadm http service port, install fixed version. No publicly available exploits are known.
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: OX

Published:

Updated: 2026-03-27T13:45:12.231Z

Reserved: 2026-02-24T08:46:09.373Z

Link: CVE-2026-27856

cve-icon Vulnrichment

Updated: 2026-03-27T13:21:53.180Z

cve-icon NVD

Status : Received

Published: 2026-03-27T09:16:19.767

Modified: 2026-03-27T09:16:19.767

Link: CVE-2026-27856

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses