CVE-2026-46597: CWE-191: Integer Underflow (Wrap or Wraparound) in golang.org/x/crypto golang.org/x/crypto/ssh
An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.
AI Analysis
Technical Summary
This vulnerability involves an integer underflow (CWE-191) in the AES-GCM packet decoder of the golang.org/x/crypto/ssh package. The root cause is an incorrectly placed cast from bytes to int, which can cause the server to panic upon receiving certain malformed inputs. The issue affects version 0 of the package, with no patch or official fix currently documented. The vulnerability was published on 2026-05-22, and no CVSS score or vendor advisory is available to confirm remediation status.
Potential Impact
The vulnerability can cause a server-side panic, potentially leading to denial of service conditions when processing maliciously crafted packets. There is no evidence of code execution or data compromise from the provided information. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor golang.org/x/crypto project updates and consider applying any future patches promptly. No vendor advisory or temporary workaround is currently available.
CVE-2026-46597: CWE-191: Integer Underflow (Wrap or Wraparound) in golang.org/x/crypto golang.org/x/crypto/ssh
Description
An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer underflow (CWE-191) in the AES-GCM packet decoder of the golang.org/x/crypto/ssh package. The root cause is an incorrectly placed cast from bytes to int, which can cause the server to panic upon receiving certain malformed inputs. The issue affects version 0 of the package, with no patch or official fix currently documented. The vulnerability was published on 2026-05-22, and no CVSS score or vendor advisory is available to confirm remediation status.
Potential Impact
The vulnerability can cause a server-side panic, potentially leading to denial of service conditions when processing maliciously crafted packets. There is no evidence of code execution or data compromise from the provided information. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor golang.org/x/crypto project updates and consider applying any future patches promptly. No vendor advisory or temporary workaround is currently available.
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: 6a0fcdade1370fbb487d5133
Added to database: 5/22/2026, 3:29:49 AM
Last enriched: 5/22/2026, 3:44:50 AM
Last updated: 5/23/2026, 5:57:45 PM
Views: 15
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