CVE-2025-32797: Conda-build contains commands and tools to build conda packages

Q: How do I fix CVE-2025-32797?

conda-build: upgrade to 25.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2025-32797 being exploited?

CVE-2025-32797 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-32797 affect?

CVE-2025-32797 affects conda-build. Severity is high (CVSS 7.0). Conda-build contains commands and tools to build conda packages. Prior to version 25.3.1, the write_build_scripts function in conda-build creates the temporary build script conda_build.sh with overly permissive file permissions (0o766), all

Routine

HIGH 7.0UPGRADE

CVE-2025-32797 is a high-severity flaw (CVSS 7.0) affecting conda-build. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Conda-build contains commands and tools to build conda packages. Prior to version 25.3.1, the write_build_scripts function in conda-build creates the temporary build script conda_build.sh with overly permissive file permissions (0o766), allowing write access to all users. Attackers with filesystem access can exploit a race condition to overwrite the script before execution, enabling arbitrary code execution under the victim's privileges. This ris

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.0 (High)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-277
Published	2025-06-16
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: anaconda

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-16 19:15 UTCPublished CVE record published
2026-06-17 09:12 UTCUpdated Record last modified

anaconda conda-build UPGRADE

Affected: < 25.3.1

Fixed in: 25.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy conda-build || rpm -q conda-build || conda-build --version

2. UPGRADE to 25.3.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade conda-build

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade conda-build

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-32797?

conda-build: upgrade to 25.3.1. Exact commands for each OS are on this page.

Is CVE-2025-32797 being exploited?

CVE-2025-32797 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-32797 affect?

CVE-2025-32797 affects conda-build. Severity is high (CVSS 7.0). Conda-build contains commands and tools to build conda packages. Prior to version 25.3.1, the write_build_scripts function in conda-build creates the temporary build script conda_build.sh with overly permissive file permissions (0o766), all

How urgent is CVE-2025-32797?

Priority 26/100. High severity

Related CVEs

CVE-2025-32800 CRITICAL 9.8 UPGRADE Conda-build contains commands and tools to build conda packages
CVE-2025-32799 CRITICAL 9.8 UPGRADE Conda-build contains commands and tools to build conda packages
CVE-2025-32798 CRITICAL 9.8 UPGRADE Conda-build contains commands and tools to build conda packages

References

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