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CVE Vulnerabilities

CVE-2026-35387

Always-Incorrect Control Flow Implementation

Published: Apr 02, 2026 | Modified: Apr 27, 2026
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
CVSS 2.x
RedHat/V2
RedHat/V3
3.1 LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-35387
CWEhttps://cwe.mitre.org/data/definitions/670.html

OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted to mean all ECDSA algorithms.

Weakness

The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated.

Affected Software

NameVendorStart VersionEnd Version
OpensshOpenbsd*10.3 (excluding)
Red Hat Enterprise Linux 10RedHatopenssh-0:9.9p1-14.el10_1*
Red Hat Enterprise Linux 10RedHatopenssh-0:9.9p1-23.el10_2*
Red Hat Enterprise Linux 10.0 Extended Update SupportRedHatopenssh-0:9.9p1-7.el10_0.3*
Red Hat Enterprise Linux 8RedHatopenssh-0:8.0p1-29.el8_10*
Red Hat Enterprise Linux 8RedHatopenssh-0:8.0p1-29.el8_10*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatopenssh-0:8.0p1-7.el8_4.2*
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRedHatopenssh-0:8.0p1-7.el8_4.2*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatopenssh-0:8.0p1-15.el8_6.5*
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRedHatopenssh-0:8.0p1-15.el8_6.5*
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRedHatopenssh-0:8.0p1-15.el8_6.5*
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRedHatopenssh-0:8.0p1-20.el8_8.4*
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRedHatopenssh-0:8.0p1-20.el8_8.4*
Red Hat Enterprise Linux 9RedHatopenssh-0:8.7p1-49.el9_7*
Red Hat Enterprise Linux 9RedHatopenssh-0:9.9p1-7.el9_8*
Red Hat Enterprise Linux 9RedHatopenssh-0:8.7p1-49.el9_7*
Red Hat Enterprise Linux 9RedHatopenssh-0:9.9p1-7.el9_8*
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRedHatopenssh-0:8.7p1-30.el9_2.11*
Red Hat Enterprise Linux 9.4 Extended Update SupportRedHatopenssh-0:8.7p1-38.el9_4.8*
Red Hat Enterprise Linux 9.6 Extended Update SupportRedHatopenssh-0:8.7p1-45.el9_6.3*
Red Hat AI Inference Server 3.2RedHatrhaiis/model-opt-cuda-rhel9:1780681984*
Red Hat Discovery 2RedHatdiscovery/discovery-server-rhel9:1778101579*
Red Hat Update Infrastructure 5RedHatrhui5/installer-rhel9:1779798165*
Red Hat Update Infrastructure 5RedHatrhui5/rhua-rhel9:1779798222*
OpensshUbuntudevel*
OpensshUbuntuesm-infra/xenial*
OpensshUbuntufips-preview/jammy*
OpensshUbuntufips-updates/jammy*
OpensshUbuntufips-updates/noble*
OpensshUbuntujammy*
OpensshUbuntunoble*
OpensshUbuntuquesting*
OpensshUbunturesolute*
Openssh-ssh1Ubuntudevel*
Openssh-ssh1Ubuntuesm-apps/bionic*
Openssh-ssh1Ubuntuesm-apps/focal*
Openssh-ssh1Ubuntuesm-apps/jammy*
Openssh-ssh1Ubuntuesm-apps/noble*
Openssh-ssh1Ubuntuesm-apps/resolute*
Openssh-ssh1Ubuntujammy*
Openssh-ssh1Ubuntunoble*
Openssh-ssh1Ubuntuquesting*
Openssh-ssh1Ubunturesolute*
Openssh-ssh1Ubuntuupstream*

References

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