Review reviewHigh

CVE-2026-46597

golang.org/x/crypto golang.org/x/crypto/ssh, crypto

An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.

CVSS
7.5
EPSS
0.47%
38.4% percentile
CISA KEV
Not listed
Published
2026.05.22
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.47%
Technical severityCVSS 7.5

Vulnerability overview

An incorrectly placed cast from bytes to int allowed for server-side panic in the AES-GCM packet decoder for well-crafted inputs.

Affected product and versions

Product
golang.org/x/crypto golang.org/x/crypto/ssh, crypto
Affected versions
< 0.52.0
Fixed versions
0.52.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that golang.org/x/crypto golang.org/x/crypto/ssh, crypto and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
CWE-704