CVSS 3.1
7.4 highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NCVE-2021-26911
High (7.4). EPSS 1.1% chance of exploitation in the next 30 days.
core/imap/MCIMAPSession.cpp in Canary Mail before 3.22 has Missing SSL Certificate Validation for IMAP in STARTTLS mode.
Severity
- EPSS
- 1.1% chance of exploitation in the next 30 days; higher than 65% of CVEs (scores of 2026-10-31)
- CWE
- CWE-295
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canarymail:canary_mail
- libmailcore:mailcore2
References
- http://www.openwall.com/lists/oss-security/2021/02/17/3
- https://apps.apple.com/us/app/canary-mail/id1236045954
- https://census-labs.com/news/2021/02/17/canary-mail-app-missing-certificate-validation-check-on-imap-starttls/
- https://census-labs.com/news/category/advisories/
- https://github.com/canarymail/mailcore2/commit/45acb4efbcaa57a20ac5127dc976538671fce018