CVE-2020-26283Network attack vector

Malicious user action via unescaped console control characters

Published Mar 24, 2021 · Updated Aug 4, 2024

Improper output escaping in IPFS Kubo before 0.8.0 allows context-dependent attackers to manipulate displayed console text. CLI text encoders pass untrusted names and paths directly to formatted console output without escaping non-printable characters or backslashes. Exploitation requires a user to display attacker-controlled metadata and act on the deceptive output; the documented consequence is limited to an unspecified malicious user action.

CVSS severity6.8
Medium
EPSS probability1.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper output escaping in IPFS Kubo before 0.8.0 allows context-dependent attackers to manipulate displayed console text. CLI text encoders pass untrusted names and paths directly to formatted console output without escaping non-printable characters or backslashes. Exploitation requires a user to display attacker-controlled metadata and act on the deceptive output; the documented consequence is limited to an unspecified malicious user action.

The record

CVE
CVE-2020-26283
Published
Mar 24, 2021
Updated
Aug 4, 2024
Vendor
IPFS
Product
Kubo
Classifications
CWE-116
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 24, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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=< 0.8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IPFS · Kuboversion=< 0.8.0

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-116Improper Encoding or Escaping of Output

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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