CVE-2025-49843

Token disclosure and modification via permissive file creation

Published Jun 17, 2025 · Updated Jun 18, 2025

Incorrect default file permissions in conda-forge conda-smithy before 3.47.1 allow local users to read or alter Travis CI access tokens. The travis_headers function writes ~/.conda-smithy/travis.token with the ordinary open call and does not restrict its mode to 0o600. Exposure requires another local account in a shared hosting environment to access the file, enabling token disclosure or unauthorized modification.

CVSS severityUnavailable
Unscored
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect default file permissions in conda-forge conda-smithy before 3.47.1 allow local users to read or alter Travis CI access tokens. The travis_headers function writes ~/.conda-smithy/travis.token with the ordinary open call and does not restrict its mode to 0o600. Exposure requires another local account in a shared hosting environment to access the file, enabling token disclosure or unauthorized modification.

The record

CVE
CVE-2025-49843
Published
Jun 17, 2025
Updated
Jun 18, 2025
Vendor
conda-forge
Product
conda-smithy
Classifications
CWE-276, T1552.001
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 18, 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=< 3.47.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

conda-forge · conda-smithyversion=< 3.47.1

Published CVSS scores

2.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

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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