None None None No publicly available exploits are known.
Priority LOW 34CWE-89Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Partial Red Hat: 6 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-89.
Summary
None None None No publicly available exploits are known.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00317 24th percentileScored 2026-11-07
Fix Partial OX Dovecot Pro (Open-Xchange GmbH): 3.1.6OX Dovecot CE (Open-Xchange GmbH): 2.4.5Red Hat: 3 advisoriesRed Hat: 6 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Open-Xchange GmbH | OX Dovecot Pro | 2.3.0 to before 3.1.6 | 3.1.6 | Patch available | CNA |
| Open-Xchange GmbH | OX Dovecot CE | 2.3.0 to before 2.4.5 | 2.4.5 | Patch available | CNA |
- OX Dovecot Pro VendorOpen-Xchange GmbH Affected 2.3.0 to before 3.1.6 Fixed in 3.1.6 Patch available CNA
- OX Dovecot CE VendorOpen-Xchange GmbH Affected 2.3.0 to before 2.4.5 Fixed in 2.4.5 Patch available CNA
Remediation
- Fix · CNA OX Dovecot Pro (Open-Xchange GmbH) Fixed in 3.1.6
- Fix · CNA OX Dovecot CE (Open-Xchange GmbH) Fixed in 2.4.5
Red Hat 3 advisories
- RHSA-2026:80825 Released 2026-10-12 · Red Hat rating Importantdovecot security update
- Red Hat Enterprise Linux AppStream (v. 9) dovecot-1:2.3.16-18.el9_8.8, dovecot-mysql-1:2.3.16-18.el9_8.8, dovecot-pgsql-1:2.3.16-18.el9_8.8 +1
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) dovecot-1:2.3.16-18.el9_8.8, dovecot-devel-1:2.3.16-18.el9_8.8
- RHSA-2026:79371 Released 2026-10-08 · Red Hat rating Importantdovecot security update
- Red Hat Enterprise Linux AppStream (v. 10) dovecot-1:2.3.21-19.el10_2.8, dovecot-mysql-1:2.3.21-19.el10_2.8, dovecot-pgsql-1:2.3.21-19.el10_2.8 +1
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) dovecot-devel-1:2.3.21-19.el10_2.8
- RHSA-2026:76763 Released 2026-10-06 · Red Hat rating Importantdovecot security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 8) dovecot-1:2.3.16-16.el8_10, dovecot-mysql-1:2.3.16-16.el8_10, dovecot-pgsql-1:2.3.16-16.el8_10 +1
- Red Hat Enterprise Linux CRB (v. 8) dovecot-1:2.3.16-16.el8_10, dovecot-devel-1:2.3.16-16.el8_10
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Open-Xchange OX Dovecot CE, OX Dovecot Pro — documentation.open-xchange.com/dovecot/security/advisories/…
25 records Highest priority Priority LOW 25 LOW
Other records, highest priority first
- TI-2026-30691 Uncontrolled resource consumption in Open-Xchange GmbH OX Dovecot ProPriority LOW 39
- TI-2026-30395 Use after free in Open-Xchange GmbH OX Dovecot ProPriority LOW 39
- TI-2026-25987 Uncontrolled resource consumption in Open-Xchange GmbH OX Dovecot ProPriority LOW 39
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:79371 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2026:76763 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2026:80825 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2026:76763 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2026:79371 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2026:80825 |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-40018
- 2026-10-03 Alias added: GHSA-8r49-82qf-r286
- 2026-10-07 Fix available: RHSA-2026:76763 · Red Hat
- 2026-10-07 Fix available: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8) · Red Hat
- 2026-10-09 Fix available: RHSA-2026:79371 · Red Hat
- 2026-10-09 Fix available: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · Red Hat
- 2026-10-12 Fix available: RHSA-2026:80825 · Red Hat
- 2026-10-13 Fix available: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) · Red Hat
References
More Open-Xchange GmbH vulnerabilities
- TI-2024-04069 Improper check for unusual conditions in Mozilla Firefox CVSS 3.1HIGH 8.8
- TI-2022-17394 OX App Suite through 7.10.6 allows SSRF because the anti-SSRF protection mechanism only… CVSS 3.1MEDIUM 5.3
- TI-2022-17393 OX App Suite through 7.10.6 has Uncontrolled Resource Consumption via a large request… CVSS 3.1MEDIUM 5.3
- TI-2022-17392 OX App Suite through 7.10.6 has Uncontrolled Resource Consumption via a large location… CVSS 3.1MEDIUM 5.3
- TI-2022-17391 OX App Suite through 7.10.6 allows XSS via a malicious capability to the metrics or help… CVSS 3.1MEDIUM 6.1
- TI-2022-17390 OX App Suite through 7.10.6 allows XSS via script code within a contact that has an e-mail address but lacks a name. CVSS 3.1MEDIUM 6.1
Sources
- CVE-2026-40018 · CVE Program
- CVE-2026-40018 · NVD
- FIRST EPSS
- GHSA-8r49-82qf-r286 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-40018 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences