CVE-2026-46598: CWE-129: Improper Validation of Array Index in golang.org/x/crypto golang.org/x/crypto/ssh/agent
CVE-2026-46598 is a medium severity vulnerability in the golang.org/x/crypto/ssh/agent package caused by improper validation of an array index. Malformed input can trigger a panic when creating an ed25519 PrivateKey, leading to a denial-of-service condition. There is no impact on confidentiality or integrity. No official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-46598) in the golang.org/x/crypto/ssh/agent package involves improper validation of an array index (CWE-129). Specifically, malformed wire bytes can cause a panic during the casting process to create an ed25519 PrivateKey, resulting in a denial-of-service (DoS) condition. The vulnerability does not affect confidentiality or integrity of data. As of the published date, no official fix or remediation guidance has been provided by the vendor.
Potential Impact
The vulnerability allows an attacker to cause a denial-of-service by triggering a panic in the ssh/agent package when processing malformed input. There is no impact on confidentiality or integrity, limiting the effect to availability disruption only.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider mitigating exposure by restricting untrusted input to the ssh/agent package or employing other application-level protections to prevent malformed data from triggering the vulnerability.
CVE-2026-46598: CWE-129: Improper Validation of Array Index in golang.org/x/crypto golang.org/x/crypto/ssh/agent
Description
CVE-2026-46598 is a medium severity vulnerability in the golang.org/x/crypto/ssh/agent package caused by improper validation of an array index. Malformed input can trigger a panic when creating an ed25519 PrivateKey, leading to a denial-of-service condition. There is no impact on confidentiality or integrity. No official patch or remediation guidance is currently available.
CVSS v3.1
Score 5.3medium
Affected software
pkg:golang/golang.org/x/crypto/ssh/agentRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-46598) in the golang.org/x/crypto/ssh/agent package involves improper validation of an array index (CWE-129). Specifically, malformed wire bytes can cause a panic during the casting process to create an ed25519 PrivateKey, resulting in a denial-of-service (DoS) condition. The vulnerability does not affect confidentiality or integrity of data. As of the published date, no official fix or remediation guidance has been provided by the vendor.
Potential Impact
The vulnerability allows an attacker to cause a denial-of-service by triggering a panic in the ssh/agent package when processing malformed input. There is no impact on confidentiality or integrity, limiting the effect to availability disruption only.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider mitigating exposure by restricting untrusted input to the ssh/agent package or employing other application-level protections to prevent malformed data from triggering the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Go
- Date Reserved
- 2026-05-15T17:35:00.813Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0fcdade1370fbb487d5139
Added to database: 05/22/2026, 03:29:49 UTC
Last enriched: 07/08/2026, 13:54:51 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 100
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