CVE-2026-59996

MEDIUM

4.2

CVSS v3

Description

scp in OpenSSH before 10.4 may place a file in the parent directory of an intended directory when the copy occurs between two remote destinations.

CWE-23

How to fix

Remediation Available

opensshDebian

Fixed in:1:10.4p1-1CVE-2026-59996

opensshRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:main@aarch64RHSA-2026:37382

Fixed in:main@srcRHSA-2026:37382

Fixed in:main@x86_64RHSA-2026:37382

opensshRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:main@x86_64RHSA-2026:37382

Fixed in:main@aarch64RHSA-2026:37382

Fixed in:main@srcRHSA-2026:37382

openssh-askpassRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-askpassRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-askpass-debuginfoRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-askpass-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-clientsRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-clientsRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-clients-debuginfoRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-clients-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-debuginfoRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-debugsourceRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-debugsourceRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-keycatRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-keycatRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-keycat-debuginfoRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-keycat-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-keysignRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

openssh-keysignRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

openssh-keysign-debuginfoRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

openssh-keysign-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

openssh-serverRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-serverRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-server-debuginfoRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-server-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-sk-dummy-debuginfoRocky

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

openssh-sk-dummy-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-25.el10_2RHSA-2026:47757

Fixed in:0:9.9p1-9.el9_8RHSA-2026:47756

pam_ssh_agent_authRed Hat / RHEL

Fixed in:0:0.10.4-7.9.el9_8RHSA-2026:47756

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:L

Exploit Intelligence

0.25%probability of exploitation in 30 days

16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Mailing List1

openwall.com

Release Notes2

Related Vulnerabilities

Other CWE-23 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-27199	High	7.3	100%	KEV + Ransom	Fix
CVE-2020-5410	High	7.5	96%	KEV	Fix
CVE-2021-40870	Critical	9.8	93%	KEV	Fix
CVE-2025-64446	Critical	9.8	92%	KEV	Fix
CVE-2020-5405	Medium	6.5	69%	-	Fix
CVE-2025-55752	High	7.5	67%	-	Fix

Common questions

How do I fix CVE-2026-59996?

Published advisories record a fix for 46 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2026-59996 being actively exploited?

Not that we know of. CVE-2026-59996 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.25% is the estimated probability that it will be exploited in the next 30 days. That is higher than 16% of all scored CVEs.

How severe is CVE-2026-59996?

CVE-2026-59996 has a CVSS v3 base score of 4.2, rated moderate. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-59996 affect?

Published advisories record a fix for openssh (Debian), openssh (Red Hat / RHEL), openssh (Rocky), openssh-askpass (Rocky), and 42 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-09.