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TI-2025-31611 Aliases CVE-2025-49598

conda-forge-ci-setup Allows Arbitrary Code Execution via Insecure Version Parsing

Priority MEDIUM 56CWE-95Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-95.

Summary

conda-forge-ci-setup is a package installed by conda-forge each time a build is run on CI. The conda-forge-ci-setup-feedstock setup script is vulnerable due to the unsafe use of the eval function when parsing version information from a custom-formatted meta.yaml file. An attacker controlling meta.yaml can inject malicious code into the version assignment, which is executed during file processing, leading to arbitrary code execution. Exploitation requires an attacker to modify the recipe file by manipulating the RECIPE_DIR variable and introducing a malicious meta.yaml file. While this is more feasible in CI/CD pipelines, it is uncommon in typical environments, reducing overall risk. This vulnerability is fixed in 4.15.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00182 7th percentileScored 2026-11-07
Fix Fixed conda-forge-ci-setup-feedstock (conda-forge): 4.15.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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-forge-ci-setup-feedstockbefore 4.15.04.15.0Patch availableCNA
  • conda-forge-ci-setup-feedstock Vendorconda-forge Affected before 4.15.0 Fixed in 4.15.0 Patch available CNA

Remediation

  • Fix · CNA conda-forge-ci-setup-feedstock (conda-forge) Fixed in 4.15.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-49598

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-2025-22665 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-2026-34328 Improper access control in conda-forge conda-smithy CVSS 3.1HIGH 7.6
  • 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