CVE-2020-24386

MediumCVSS 6.8/10Last modified Jun 17, 2026

Description

An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authenticated attacker can trigger unhibernation via attacker-controlled parameters, leading to access to other users' email messages (and path disclosure).

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://packetstormsecurity.com/files/160842/Dovecot-2.3.11.3-Access-Bypass.htmlMailing List, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Jan/18Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/04/4Mailing List, Third Party Advisory
https://doc.dovecot.org/configuration_manual/hibernation/Vendor Advisory
https://dovecot.org/pipermail/dovecot-news/2021-January/000450.htmlMailing List, Vendor Advisory
https://dovecot.org/securityVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GXDKFLOCUP7I4ELGQ2F4P5TGC6NXMYV7/
https://security.gentoo.org/glsa/202101-01Third Party Advisory
https://www.debian.org/security/2021/dsa-4825Third Party Advisory
http://packetstormsecurity.com/files/160842/Dovecot-2.3.11.3-Access-Bypass.htmlMailing List, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2021/Jan/18Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/04/4Mailing List, Third Party Advisory
https://doc.dovecot.org/configuration_manual/hibernation/Vendor Advisory
https://dovecot.org/pipermail/dovecot-news/2021-January/000450.htmlMailing List, Vendor Advisory
https://dovecot.org/securityVendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GXDKFLOCUP7I4ELGQ2F4P5TGC6NXMYV7/
https://security.gentoo.org/glsa/202101-01Third Party Advisory
https://www.debian.org/security/2021/dsa-4825Third Party Advisory

Timeline

Published: Jan 4, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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