CVE-2025-32798Public exploitNetwork attack vector

Code execution via unsanitized recipe selector evaluation

Published Jun 16, 2025 · Updated Jun 17, 2025

Code injection in Conda conda-build before 25.4.0 allows remote attackers to execute arbitrary code through malicious recipe selectors. The metadata.py recipe parser passes embedded selector expressions to Python eval() without sanitization, permitting imports and operating-system calls. Execution occurs when conda-build processes an attacker-controlled recipe, and commands run with the build process's privileges.

CVSS severity9.8
Critical
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Conda conda-build before 25.4.0 allows remote attackers to execute arbitrary code through malicious recipe selectors. The metadata.py recipe parser passes embedded selector expressions to Python eval() without sanitization, permitting imports and operating-system calls. Execution occurs when conda-build processes an attacker-controlled recipe, and commands run with the build process's privileges.

The record

CVE
CVE-2025-32798
Published
Jun 16, 2025
Updated
Jun 17, 2025
Vendor
Conda
Product
conda-build
Classifications
CWE-94, T1059.006
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 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=< 25.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Conda · conda-buildversion=< 25.4.0

Published CVSS scores

8.2GitHub, Inc.CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.006Command and Scripting Interpreter: Python

Public exploit references

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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