OpenBSD OpenSSH up to 10.3 SFTP path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$5k-$25k0.58+

Summaryinfo

A vulnerability labeled as critical has been found in OpenBSD OpenSSH up to 10.3. Affected by this vulnerability is an unknown functionality of the component SFTP. Executing a manipulation can lead to path traversal. This vulnerability is registered as CVE-2026-59995. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical was found in OpenBSD OpenSSH up to 10.3. This vulnerability affects an unknown part of the component SFTP. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

sftp in OpenSSH before 10.4 does not properly constrain the location of downloaded files when "sftp server:/path ." is used with an attacker-controlled server.

The advisory is available at openwall.com. This vulnerability was named CVE-2026-59995 since 07/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 07/08/2026). This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 10.4 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Upgrade: OpenSSH 10.4

Timelineinfo

07/08/2026 Advisory disclosed
07/08/2026 +0 days CVE reserved
07/08/2026 +0 days VulDB entry created
07/08/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: openbsd.org

Advisory: openwall.com
Status: Confirmed

CVE: CVE-2026-59995 (🔒)
GCVE (CVE): GCVE-0-2026-59995
GCVE (VulDB): GCVE-100-376750

Entryinfo

Created: 07/08/2026 03:11
Changes: 07/08/2026 03:11 (54)
Complete: 🔍
Cache ID: 216::103

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