CVE-2026-35385

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-02 · updated 2026-09-01
Weakness: CWE-281

Description

In OpenSSH before 10.3, a file downloaded by scp may be installed setuid or setgid, an outcome contrary to some users' expectations, if the download is performed as root with -O (legacy scp protocol) and without -p (preserve mode).

Affected products

OpenSSH: before 10.3 — fixed in 10.3

How to fix

Upgrade to a fixed version: OpenSSH 10.3. Check the vendor advisory for mitigations.

References

https://marc.info/?l=openssh-unix-dev&m=177513443901484&w=2
https://www.openssh.org/releasenotes.html#10.3p1
https://www.openwall.com/lists/oss-security/2026/04/02/3
https://access.redhat.com/errata/RHSA-2026:12389
https://access.redhat.com/errata/RHSA-2026:13380
https://access.redhat.com/errata/RHSA-2026:13381
https://access.redhat.com/errata/RHSA-2026:13383
https://access.redhat.com/errata/RHSA-2026:14937
https://access.redhat.com/errata/RHSA-2026:16059
https://access.redhat.com/errata/RHSA-2026:19069
https://access.redhat.com/errata/RHSA-2026:19219
https://access.redhat.com/errata/RHSA-2026:20040

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