CVE-2026-87864

Description

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.

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Produits concernés

• curl

Références

• https://curl.se/docs/CVE-2026-87864.html
• https://curl.se/docs/CVE-2026-87864.json
• https://hackerone.com/reports/3972403

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories