CVE-2023-22460Network attack vector

Application crash via unsupported Bytes token

Published Jan 4, 2023 · Updated Aug 27, 2026

Denial of service in IPLD go-ipld-prime before 0.19.0 allows attackers to crash applications by encoding a Bytes node with the JSON codec. The codec/json encoder forwards the node as a Bytes token to a token sink that rejects the token and panics instead of returning an error. Only applications that encode attacker-influenced IPLD nodes as plain JSON are exposed; DAG-JSON and JSON decoding are unaffected.

CVSS severity7.5
High
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in IPLD go-ipld-prime before 0.19.0 allows attackers to crash applications by encoding a Bytes node with the JSON codec. The codec/json encoder forwards the node as a Bytes token to a token sink that rejects the token and panics instead of returning an error. Only applications that encode attacker-influenced IPLD nodes as plain JSON are exposed; DAG-JSON and JSON decoding are unaffected.

The record

CVE
CVE-2023-22460
Published
Jan 4, 2023
Updated
Aug 27, 2026
Vendor
IPLD
Product
go-ipld-prime
Classifications
CWE-20, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 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=< 0.19.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IPLD · go-ipld-primeversion=< 0.19.0

Published CVSS scores

7.5NIST NVDCVSS: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.

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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-20Improper Input Validation
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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