CVE-2026-86410: redirect to SFTP or SCP bypasses host verification
Affected: curl · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 56% of scored CVEs
DescriptionCVE.org
A flaw in the curl command line tool's logic makes it only set SSH host verification options when interacting directly using SFTP or SCP, and not as a result of following a redirect.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- curl · curlfrom 8.22.0 up to and including 8.22.0; from 8.21.0 up to and including 8.21.0; from 8.20.0 up to and including 8.20.0; from 8.19.0 up to and including 8.19.0; from 8.18.0 up to and including 8.18.0; from 8.17.0 up to and including 8.17.0 and 37 more
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- curl
- Published
- October 2026
- Bounty reports
- 2 disclosed on HackerOne
Disclosed bug bounty reports about CVE-2026-86410
The reports on HackerOne that name this CVE, with HackerOne's own outcome. Titles and metadata only.
- Redirect to imap/pop3/smtp (SASL) or sftp/scp (libssh) authenticates to the attacker's host with the user's ambient Kerberos credentialscurl · 2026 · low severityInformative
- CVE-2026-86410: redirect to SFTP or SCP bypasses host verificationcurl · 2026Valid
CoverageNo articles yet
No CyberSIXT article names CVE-2026-86410 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.