CVE-2026-87865

CVSS 7.4 (high) · published 2026-10-20

When libcurl uses libssh2 with a hashed `known_hosts` file, an unrelated initial entry can cause host key validation to report a key *mismatch* as a *missing* key to the `CURLOPT_SSH_KEYFUNCTION` callback.

Weakness: CWE-295

Source: NVD CVE-2026-87865

References

• https://curl.se/docs/CVE-2026-87865.html
• https://curl.se/docs/CVE-2026-87865.json
• https://hackerone.com/reports/3975408
• https://hackerone.com/reports/3975408

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