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CVE-2026-87864

🗓️ 14 Oct 2026 22:43:58Reported by MendType 
mend
 mend
🔗 www.mend.io👁 4 Views

CURLOPT_CRLF in curl causes IMAP command injection via raw input byte count overflow.

Related
ReporterTitlePublishedViews
Family
curl
curl security advisories
IMAP APPEND plus CRLF conversion command injection
14 Oct 202608:00
–curl
cve
CVE
CVE-2026-87864
14 Oct 202608:00
–cve
debiancve
Debian CVE
CVE-2026-87864
14 Oct 202608:00
–debiancve
hackerone
Hacker One
curl: CVE-2026-87864: IMAP APPEND plus CRLF conversion command injection
26 Aug 202623:03
–hackerone
osv-curl
osv-curl
CURL-CVE-2026-87864 IMAP APPEND plus CRLF conversion command injection
14 Oct 202608:00
–osv-curl
osv-debian
osv-debian
DEBIAN-CVE-2026-87864
14 Oct 202607:47
–osv-debian
osv-echo
osv-echo
ECHO-1026-1737-F313
14 Oct 202613:51
–osv-echo
ptsecurity
Positive Technologies
PT-2026-114315
14 Oct 202600:00
–ptsecurity
ubuntucve
UbuntuCve
CVE-2026-87864
14 Oct 202606:00
–ubuntucve
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-87864
14 Oct 202600:00
–nessus
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15 Oct 2026 18:50Current
5.8Medium risk
Vulners AI Score5.8
CVSS 42.3
CVSS 3.14.2
4