CVE-2022-30635Network attack vector

Application crash via unbounded ignored-field recursion

Published Aug 9, 2022 · Updated Mar 6, 2026

Uncontrolled recursion in Go encoding/gob before 1.17.12 and 1.18.0 through 1.18.3 allows remote attackers to crash applications. Decoder.decIgnoreOpFor and related decoder compilation paths recursively descend nested ignored fields without a depth limit, exhausting the process stack and causing a panic. A reachable application must pass an attacker-controlled gob stream to Decoder.Decode; the resulting panic interrupts that process without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability1.70%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled recursion in Go encoding/gob before 1.17.12 and 1.18.0 through 1.18.3 allows remote attackers to crash applications. Decoder.decIgnoreOpFor and related decoder compilation paths recursively descend nested ignored fields without a depth limit, exhausting the process stack and causing a panic. A reachable application must pass an attacker-controlled gob stream to Decoder.Decode; the resulting panic interrupts that process without reported data disclosure or modification.

The record

CVE
CVE-2022-30635
Published
Aug 9, 2022
Updated
Mar 6, 2026
Vendor
Go standard library
Product
encoding/gob
Classifications
CWE-674, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Mar 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.17.12
  2. Affected versionversion=1.18.0-0 <1.18.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · encoding/gobversion=0 <1.17.12; version=1.18.0-0 <1.18.4

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-674Uncontrolled Recursion
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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