UNKNOWN NVD
CVE-2026-87864
Enabling `CURLOPT_CRLF` causes curl to advertise the raw input byte count in the `IMAP APPEND {N}` literal while transmitting line-ending expanded data. The ser
Enabling `CURLOPT_CRLF` causes curl to advertise the raw input byte count in
the `IMAP APPEND {N}` literal while transmitting line-ending expanded data.
The server reads only $N$ bytes for the payload, causing the remaining
overflow bytes to be interpreted and executed as pipelined IMAP commands
within the authenticated session.
References
- https://curl.se/docs/CVE-2026-87864.html
- https://curl.se/docs/CVE-2026-87864.json
- https://hackerone.com/reports/3972403
This unknown severity vulnerability was published on 2026-10-20 via NVD.
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