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CURL-CVE-2026-87864

Published Oct 14, 2026·Last modified Oct 14, 2026
Affected Components(245)
curl/curl
curl-8_9_1
curl/curl
8.6.0
curl/curl
curl-7_60_0
1 / 82
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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Risk Scores
Base Score
-1.0

Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.

Threat Intelligence
-1.0

No exploitation activity has been observed at this time. Continue routine monitoring.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Related Vulnerabilities
  • CVE-2026-87864
    Alias
  • EUVD-2026-105310
    Alias
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