CVE-2026-33818

Enforce maximum recursion depth in encoding/asn1

Published Aug 13, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-8935-1 Go vulnerabilities
History
Type Values Removed Values Added
Weaknesses CWE-399
Type Values Removed Values Added
Weaknesses CWE-400
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Go Standard Library
Go Standard Library encoding/asn1
Vendors & Products Go Standard Library
Go Standard Library encoding/asn1
Type Values Removed Values Added
Weaknesses CWE-399
Type Values Removed Values Added
Description Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.
Title Enforce maximum recursion depth in encoding/asn1
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Go
Published
Updated
Nov 13, 2026, 5:21 PM
Reserved
Mar 23, 2026, 8:35 PM
Status
Awaiting Analysis
Published
Aug 13, 2026, 10:17 PM
Modified
Sep 3, 2026, 4:37 PM
Severity
Important
Public date
Aug 13, 2026, 9:58 PM