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CVE-2026-40016

🗓️ 12 May 2026 13:28:45Reported by OXType 
cve
 cve
🔗 web.nvd.nist.gov👁 61 Views

CVE-2026-40016 allows uploading a Sieve script to bypass CPU time limits up to 130x.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-40016
12 May 202613:28
–attackerkb
alpinelinux
AlpineLinux
CVE-2026-40016
12 May 202613:28
–alpinelinux
astralinux
AstraLinux
Astra Linux – Vulnerability in dovecot
14 Sep 202612:41
–astralinux
bdu_fstec
BDU FSTEC
ManageSieve Mail Server Uncontrolled Resource Consumption DoS
23 Jul 202600:00
–bdu_fstec
cnnvd
CNNVD
Open-Xchange OX Dovecot Pro Resource Management Error Vulnerability
12 May 202600:00
–cnnvd
cvelist
Cvelist
CVE-2026-40016
12 May 202613:28
–cvelist
debian
Debian
[SECURITY] [DSA 6313-1] dovecot security update
31 May 202618:25
–debian
debiancve
Debian CVE
CVE-2026-40016
12 May 202613:28
–debiancve
nessus
Tenable Nessus
Debian dsa-6313 : dovecot-auth-lua - security update
2 Jun 202600:00
–nessus
nessus
Tenable Nessus
Fedora 43 : dovecot (2026-693373747f)
3 Jun 202600:00
–nessus
Rows per page
NVD
Node
OR
dovecotdovecotRange<2.4.4
open-xchangedovecotRange<3.1.5pro
[
  {
    "defaultStatus": "unaffected",
    "modules": [
      "core"
    ],
    "product": "OX Dovecot Pro",
    "vendor": "Open-Xchange GmbH",
    "versions": [
      {
        "lessThanOrEqual": "2.3.0",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]

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17 Jun 2026 10:44Current
6Medium risk
Vulners AI Score6
CVSS 3.15.3 - 6.5
EPSS0.00427
SSVC
61