Uncontrolled Recursion Affecting std/encoding/asn1 package, versions <1.25.13>=1.26.0-0 <1.26.6>=1.27.0-0 <1.27.0-rc.3
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-GOLANG-STDENCODINGASN1-18858463
- published16 Aug 2026
- disclosed13 Aug 2026
- creditMarwan Atia
Introduced: 13 Aug 2026
NewCVE-2026-33818 (opens in a new tab)How to fix?
Upgrade std/encoding/asn1 to version 1.25.13, 1.26.6, 1.27.0-rc.3 or higher.
Overview
std/encoding/asn1 is a Go standard library package std/encoding/asn1
Affected versions of this package are vulnerable to Uncontrolled Recursion.
Go Vulnerability Report:
Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures.