CVE-2022-31124Public exploitNetwork attack vector

Private key disclosure via raw EOFError contents

Published Jul 6, 2022 · Updated Apr 22, 2025

Information disclosure in Scott C Wang openssh-key-parser before 0.0.6 allows remote authenticated users to read private key material. The read_fixed_bytes method in pascal_style_byte_stream.py places an incomplete raw byte sequence in EOFError when a declared field length exceeds the remaining input. Exploitation requires control of a parsed key's length field and access to the resulting exception or log, exposing the remaining key bytes.

CVSS severity7.7
High
EPSS probability1.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Scott C Wang openssh-key-parser before 0.0.6 allows remote authenticated users to read private key material. The read_fixed_bytes method in pascal_style_byte_stream.py places an incomplete raw byte sequence in EOFError when a declared field length exceeds the remaining input. Exploitation requires control of a parsed key's length field and access to the resulting exception or log, exposing the remaining key bytes.

The record

CVE
CVE-2022-31124
Published
Jul 6, 2022
Updated
Apr 22, 2025
Vendor
Scott C Wang
Product
openssh-key-parser
Classifications
CWE-126, CWE-209, T1552.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record 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=< 0.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Scott C Wang · openssh-key-parserversion=< 0.0.6

Published CVSS scores

7.7GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

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 exploitPublished

Weakness, pattern, technique

CWE-126Buffer Over-read
CWE-209Generation of Error Message Containing Sensitive Information
T1552.001Credentials In Files

Public exploit references

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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