Answer in brief
CVE-2026-73208 records a High severity (CVSS 7.4) vulnerability in CISA ADP Vulnrichment. The current sources do not mark it as known exploited. The current feed maps Open-Xchange GmbH/OX Dovecot CE (generic), Open-Xchange GmbH/OX Dovecot Pro (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Open-Xchange GmbH/OX Dovecot CE (generic), Open-Xchange GmbH/OX Dovecot Pro (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Open-Xchange GmbH/OX Dovecot CEgeneric | >=2.3.13 <2.4.5 | 2.4.5 |
| Open-Xchange GmbH/OX Dovecot Progeneric | >=2.3.13 <2.3.22.2 || >=3.0.0 <3.0.7 || >=3.1.0 <3.1.6 | 2.3.22.2, 3.0.7, 3.1.6 |
Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 28, 2026
An attacker that holds a token intended for a different purpose can authenticate, because when an OAuth2 token response does not contain a scope claim, the audience claim is used in its place and checked against the configured required scopes. These are different concepts, and the audience claim does not describe what a token is allowed to do. A token that grants no relevant permissions can be accepted because its intended recipient value happens to match a configured scope name, granting access that should have been denied. It also hides an identity provider misconfiguration where scopes are not being issued at all. Ensure the identity provider issues a scope claim for all tokens used with Dovecot, and that configured scope names do not match audience values. Update to non-vulnerable version. No publicly available exploits are known.
Quoted source text, attributed separately from HOL analysis.