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Nylas MailApplication · Nylas Mail Lives Project

CVE-2017-1000485

HIGH · 7.8 CVSS v3.0 Published 2018-01-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Nylas Mail Lives 2.2.2 uses 0755 permissions for $HOME/.nylas-mail, which allows local users to obtain sensitive authentication information via standard filesystem operations.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Nylas Mail version 2.2.2 stores authentication credentials in the $HOME/.nylas-mail directory with overly permissive 0755 (rwxr-xr-x) permissions. This allows any local user on the system to read sensitive authentication information stored in that directory via standard filesystem operations.

MitigationChange the permissions of $HOME/.nylas-mail to 0700 (drwx------) to restrict access to the directory owner only, preventing other local users from reading authentication data.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Nylas MailApplication
Affected:= 2.2.2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check if Nylas Mail is installed
    Run 'which nylas-mail' or look for the application in common locations like /usr/share/nylas-mail or ~/nylas-mail
    Affected if Nylas Mail is not installed on the system
  2. Verify the installed version is 2.2.2
    Run 'nylas-mail --version' or check the package.json/version file in the Nylas Mail installation directory
    Affected if The installed version is exactly 2.2.2
  3. Confirm the .nylas-mail directory exists in the user's home
    Run 'ls -la $HOME/.nylas-mail' to list the directory and verify it exists
    Affected if The directory $HOME/.nylas-mail exists in the user's home folder
  4. Check the directory permissions
    Run 'stat -c %a $HOME/.nylas-mail' or 'ls -ld $HOME/.nylas-mail' to view the octal permissions
    Affected if The directory permissions are 0755 (rwxr-xr-x) allowing other users to read contents

A user is affected if Nylas Mail version 2.2.2 is installed AND the $HOME/.nylas-mail directory exists with 0755 permissions, enabling any local user to read stored authentication credentials.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Change the permissions of $HOME/.nylas-mail to 0700 (drwx------) to restrict access to the directory owner only, preventing other local users from reading authentication data.

Fix this in Nylas Mail Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing1.0 h
  • Review / QA1.0 h
5.0 hours of engineering $910
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-1000485 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data