CVE-2020-7654

Private-key disclosure via unsanitized origin logging

Published May 29, 2020 · Updated Aug 4, 2024

Information exposure in Snyk Broker before 4.73.1 allows local users to read private keys from debug-level application logs. The Bunyan logger in lib/log.js omits the origin field from its sanitization map, so private-key material embedded in that field is written without redaction. Exposure requires LOG_LEVEL to be set to DEBUG and access to the resulting logs; the default INFO setting does not trigger the vulnerable logging path.

CVSS severity7.5
High
EPSS probability1.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in Snyk Broker before 4.73.1 allows local users to read private keys from debug-level application logs. The Bunyan logger in lib/log.js omits the origin field from its sanitization map, so private-key material embedded in that field is written without redaction. Exposure requires LOG_LEVEL to be set to DEBUG and access to the resulting logs; the default INFO setting does not trigger the vulnerable logging path.

The record

CVE
CVE-2020-7654
Published
May 29, 2020
Updated
Aug 4, 2024
Vendor
Snyk
Product
Snyk Broker
Classifications
CWE-532, T1552.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 29, 2020CVE 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=All versions before 4.73.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Snyk · Snyk Brokerversion=All versions before 4.73.1

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:P/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
T1552.004Private Keys

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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