OpenBSD OpenSSH up to 10.3 GSSAPIAuthentication resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.58+

Summaryinfo

A vulnerability, which was classified as problematic, has been found in OpenBSD OpenSSH up to 10.3. Impacted is an unknown function of the component GSSAPIAuthentication. Performing a manipulation results in resource consumption. This vulnerability is known as CVE-2026-60000. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in OpenBSD OpenSSH up to 10.3. It has been classified as problematic. This affects an unknown functionality of the component GSSAPIAuthentication. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service (resource consumption from excessive authentication attempts) because MaxAuthTries was mishandled for GSSAPIAuthentication.

It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2026-60000 since 07/08/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/08/2026). The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 10.4 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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: Resource consumption
CWE: CWE-400 / CWE-404
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-2026-60000 (🔒)
GCVE (CVE): GCVE-0-2026-60000
GCVE (VulDB): GCVE-100-376755

Entryinfo

Created: 07/08/2026 03:17
Changes: 07/08/2026 03:17 (54)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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