CVE-2026-60000: CWE-770 Allocation of Resources Without Limits or Throttling in OpenBSD OpenSSH
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.
AI Analysis
Technical Summary
The sshd component in OpenSSH before version 10.4 improperly handles the MaxAuthTries configuration parameter when GSSAPIAuthentication is enabled. This misconfiguration permits remote attackers to perform excessive authentication attempts without effective throttling, leading to resource exhaustion and denial of service conditions on the server. No evidence of confidentiality or integrity impact is reported. The vulnerability is identified as CWE-770 (Allocation of Resources Without Limits or Throttling).
Potential Impact
An attacker can remotely cause a denial of service by exhausting server resources through repeated authentication attempts due to the mishandling of MaxAuthTries with GSSAPIAuthentication. There is no impact on confidentiality or integrity. The availability of the sshd service may be degraded or interrupted.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider disabling GSSAPIAuthentication or limiting authentication attempts through other means to mitigate resource exhaustion risks.
CVE-2026-60000: CWE-770 Allocation of Resources Without Limits or Throttling in OpenBSD OpenSSH
Description
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.
CVSS v3.1
Score 3.7low
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The sshd component in OpenSSH before version 10.4 improperly handles the MaxAuthTries configuration parameter when GSSAPIAuthentication is enabled. This misconfiguration permits remote attackers to perform excessive authentication attempts without effective throttling, leading to resource exhaustion and denial of service conditions on the server. No evidence of confidentiality or integrity impact is reported. The vulnerability is identified as CWE-770 (Allocation of Resources Without Limits or Throttling).
Potential Impact
An attacker can remotely cause a denial of service by exhausting server resources through repeated authentication attempts due to the mishandling of MaxAuthTries with GSSAPIAuthentication. There is no impact on confidentiality or integrity. The availability of the sshd service may be degraded or interrupted.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider disabling GSSAPIAuthentication or limiting authentication attempts through other means to mitigate resource exhaustion risks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-07-08T00:14:30.824Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4da0cec9d9e3dbe333a4af
Added to database: 07/08/2026, 00:58:54 UTC
Last enriched: 07/15/2026, 12:19:52 UTC
Last updated: 08/21/2026, 22:52:13 UTC
Views: 232
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