Go encoding/asn1 Recursion Cap 1.25.12 to Prevent Stack Exhaustion
CVE-2026-33818 Published on August 13, 2026
Enforce maximum recursion depth in encoding/asn1
Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.
Vulnerability Analysis
CVE-2026-33818 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2026-33818 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2026-33818
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Affected Versions
Go standard library encoding/asn1:- Before 1.25.13 is affected.
- Version 1.26.0-0 and below 1.26.6 is affected.
- Version 1.27.0-0 and below 1.27.0-rc.3 is affected.