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TI-2026-34328 Aliases CVE-2026-46699

Improper access control in conda-forge conda-smithy

Priority LOW 33CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

conda-smithy is a tool for combining a conda recipe with configurations to build using freely hosted CI services into a single repository. Prior to version 3.61.0, a vulnerability in the conda-forge automated webservices allowed unintended write access to feedstock repositories through GitHub username takeover. The root cause is the use of mutable GitHub usernames as identifiers for repository invitation routing, rather than stable, immutable GitHub user IDs. Version 3.61.0 fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0033 26th percentileScored 2026-11-07
Fix Fixed conda-smithy (conda-forge): 3.61.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
conda-forgeconda-smithybefore 3.61.03.61.0Patch availableCNA
  • conda-smithy Vendorconda-forge Affected before 3.61.0 Fixed in 3.61.0 Patch available CNA

Remediation

  • Fix · CNA conda-smithy (conda-forge) Fixed in 3.61.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-46699

References

Other 2

  • TI-2025-20342 RCE in the package conda-forge-metadata CVSS 4.0CRITICAL 9.3
  • TI-2025-24594 conda-forge openssl-feedstock writable OPENSSLDIR CVSS 4.0HIGH 7.0
  • TI-2025-31611 conda-forge-ci-setup Allows Arbitrary Code Execution via Insecure Version Parsing CVSS 4.0MEDIUM 4.4
  • TI-2025-22665 conda-forge infrastructure uses a bad token for Azure's cf-staging access CVSS 4.0CRITICAL 9.3
  • TI-2025-23821 conda-forge-webservices has an Unauthorized Artifact Modification Race Condition CVSS 4.0HIGH 7.5
  • TI-2025-31758 conda-smithy Has Incorrect Default File Permissions CVSS 4.0LOW 2.7
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences