NVD / CVE Program· CNA GitHub_M

CVE-2025-47273: setuptools has a path traversal vulnerability in PackageIndex.download that leads to Arbitrary File Write

Noroxi assessment

Priority: Monitor (action score 30/100)

Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
Probability of exploitation in the next 30 days: 1.5% (FIRST EPSS); higher than 75.6% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
Fixed version: azl3 python-setuptools 69.0.3-5 on Azure Linux 3.0 69.0.3-5.

Low priority for now. Upgrade to azl3 python-setuptools 69.0.3-5 on Azure Linux 3.0 69.0.3-5 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. A path traversal vulnerability in `PackageIndex` is present in setuptools prior to version 78.1.1. An attacker would be allowed to write files to arbitrary locations on the filesystem with the permissions of the process running the Python code, which could escalate to remote code execution depending on the context. Version 78.1.1 fixes the issue.

HighCVSS 7.7 · v4.0—Proof of concept Fix available

Published: May 17, 2025
Updated: Jun 17, 2026
EPSS: 1.5% · 75th percentile
CWE: CWE-22

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 30 / 40 · 7.7 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.5%

CISA SSVC decision

Exploitation: proof of concept
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · GitHub_M: 7.7; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Proof of concept exists, no weaponized module
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
python	setuptools	cpe:2.3:a:python:setuptools
debian	debian linux	cpe:2.3:o:debian:debian_linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

debian debian linux11.0
python setuptoolsbefore 78.1.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

pypa setuptools
- < 78.1.1affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

+96

Same product

python: all records

Other highest-scoring records for the same primary product.

CVE-2013-1633easy_install in setuptools before 0.7 uses HTTP to retrieve packages from the PyPI repository, and does not perform integrity checks on pack
28Monitor
CVE-2026-59890setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) on macOS APFS/HFS+
24Monitor
CVE-2022-40897Python Packaging Authority (PyPA) setuptools before 65.5.1 allows remote attackers to cause a denial of service via HTML in a crafted packag
24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
azl3 python-setuptools 69.0.3-5 on Azure Linux 3.0	69.0.3-5 · CBL-Mariner Releases	Microsoft (MSRC)
almalinux:fence-agents-aliyun	4.10.0-86.el9_6.7 · AlmaLinux:9	Package registry (OSV)
almalinux:fence-agents-all	4.10.0-86.el9_6.7 · AlmaLinux:9	Package registry (OSV)
almalinux:fence-agents-amt-ws	4.10.0-86.el9_6.7 · AlmaLinux:9	Package registry (OSV)
almalinux:fence-agents-apc	4.10.0-86.el9_6.7 · AlmaLinux:9	Package registry (OSV)
almalinux:fence-agents-apc-snmp	4.10.0-86.el9_6.7 · AlmaLinux:9	Package registry (OSV)
almalinux:fence-agents-aws	4.10.0-86.el9_6.7 · AlmaLinux:9	Package registry (OSV)
almalinux:platform-python-setuptools	39.2.0-9.el8_10 · AlmaLinux:8	Package registry (OSV)
almalinux:python3-setuptools	53.0.0-13.el9_6.1 · AlmaLinux:9	Package registry (OSV)
almalinux:python3-setuptools-wheel	53.0.0-13.el9_6.1 · AlmaLinux:9	Package registry (OSV)
almalinux:python3.11-setuptools	65.5.1-4.el8_10 · AlmaLinux:8	Package registry (OSV)
almalinux:python3.11-setuptools-wheel	65.5.1-4.el8_10 · AlmaLinux:8	Package registry (OSV)
almalinux:python3.12-setuptools-wheel	68.2.2-5.el8_10 · AlmaLinux:8	Package registry (OSV)
debian:setuptools	66.1.1-1+deb12u2 · Debian:12	Package registry (OSV)
opensuse:bazel-rules-python	2.3.3-1.1 · openSUSE:Tumbleweed	Package registry (OSV)
opensuse:oci-cli	3.76.2-1.1 · openSUSE:Tumbleweed	Package registry (OSV)
opensuse:python-setuptools	67.7.2-150400.3.19.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:python-setuptools-wheel	67.7.2-150400.3.19.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:python3-setuptools	44.1.1-150400.9.12.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:python3-setuptools-test	44.1.1-150400.9.12.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:python3-setuptools-wheel	44.1.1-150400.9.12.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:python310-setuptools	67.6.1-150400.4.12.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:python312-setuptools	68.1.2-150600.3.6.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:python39-setuptools	44.1.1-150300.7.12.1 · openSUSE:Leap 15.6	Package registry (OSV)
PyPI:setuptools	78.1.1	Package registry (OSV)
red hat:fence-agents	0:4.10.0-43.el9_2.14 · Red Hat:rhel_e4s:9.2::appstream	Package registry (OSV)
red hat:fence-agents-common	0:4.10.0-43.el9_2.14 · Red Hat:rhel_e4s:9.2::appstream	Package registry (OSV)
red hat:fence-agents-compute	0:4.10.0-43.el9_2.14 · Red Hat:rhel_e4s:9.2::appstream	Package registry (OSV)
red hat:fence-agents-debuginfo	0:4.10.0-43.el9_2.14 · Red Hat:rhel_e4s:9.2::appstream	Package registry (OSV)
red hat:platform-python-setuptools	0:39.2.0-9.el8_10 · Red Hat:enterprise_linux:8::baseos	Package registry (OSV)

+31

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

Proof-of-concept repository on GitHub ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:1	2026-03-15
Proof-of-concept repository on GitHub	stars:1	2026-03-15

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedMay 17, 2025
First PoCMar 15, 2026+301 d
TodayNov 3, 2026+535 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

pypa/setuptoolscommit 250a6d1

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: X

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:47 PM UTC

For records you follow, these changes also arrive as notifications. →

References

github.com/pypa/setuptools/blob/6ead555c5fb29bc57fe6105b1bffc163f56fd558/setuptools/package_index.py#L810C1-L825C88

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

What does it mean in your environment?

We use this product, ask for help

Data sources and verification

CNA: GitHub_M

CVE.org (CNA)May 28, 2025, 3:03 PM UTC
CISA ADPMay 28, 2025, 3:03 PM UTC
NVDJun 17, 2026, 5:27 AM UTC
FIRST EPSSNov 2, 2026, 12:00 AM UTC
OSV / GHSANov 3, 2026, 3:17 AM UTC
MSRCOct 7, 2026, 3:24 AM UTC
PoC-in-GitHubNov 3, 2026, 3:17 AM UTC

Each line is when that source was last processed for this record.

Ecosystem	Package	Affected range	Fix
AlmaLinux:10	python3-setuptools	before 69.0.3-12.el10_0	69.0.3-12.el10_0
AlmaLinux:10	python3-setuptools-wheel	before 69.0.3-12.el10_0	69.0.3-12.el10_0
AlmaLinux:8	platform-python-setuptools	before 39.2.0-9.el8_10	39.2.0-9.el8_10
AlmaLinux:8	python3-setuptools	before 39.2.0-9.el8_10	39.2.0-9.el8_10
AlmaLinux:8	python3-setuptools-wheel	before 39.2.0-9.el8_10	39.2.0-9.el8_10
AlmaLinux:8	python3.11-setuptools	before 65.5.1-4.el8_10	65.5.1-4.el8_10
AlmaLinux:8	python3.11-setuptools-wheel	before 65.5.1-4.el8_10	65.5.1-4.el8_10
AlmaLinux:8	python3.12-setuptools-wheel	before 68.2.2-5.el8_10	68.2.2-5.el8_10
AlmaLinux:8	python39	before 3.9.20-2.module_el8.10.0+4040+9207bbc0	3.9.20-2.module_el8.10.0+4040+9207bbc0
AlmaLinux:8	python39-attrs	before 20.3.0-2.module_el8.6.0+2780+a40f65e1	20.3.0-2.module_el8.6.0+2780+a40f65e1
AlmaLinux:8	python39-cffi	before 1.14.3-2.module_el8.6.0+3248+c431e88c	1.14.3-2.module_el8.6.0+3248+c431e88c
AlmaLinux:8	python39-cffi	before 1.14.3-2.module_el8.6.0+2780+a40f65e1	1.14.3-2.module_el8.6.0+2780+a40f65e1
AlmaLinux:8	python39-chardet	before 3.0.4-19.module_el8.6.0+2780+a40f65e1	3.0.4-19.module_el8.6.0+2780+a40f65e1
AlmaLinux:8	python39-cryptography	before 3.3.1-3.module_el8.10.0+3765+2f9a457d	3.3.1-3.module_el8.10.0+3765+2f9a457d
AlmaLinux:8	python39-Cython	before 0.29.21-5.module_el8.6.0+3248+c431e88c	0.29.21-5.module_el8.6.0+3248+c431e88c
AlmaLinux:8	python39-Cython	before 0.29.21-5.module_el8.6.0+2780+a40f65e1	0.29.21-5.module_el8.6.0+2780+a40f65e1
AlmaLinux:8	python39-debug	before 3.9.20-2.module_el8.10.0+4040+9207bbc0	3.9.20-2.module_el8.10.0+4040+9207bbc0
AlmaLinux:8	python39-devel	before 3.9.20-2.module_el8.10.0+4040+9207bbc0	3.9.20-2.module_el8.10.0+4040+9207bbc0
AlmaLinux:8	python39-idle	before 3.9.20-2.module_el8.10.0+4040+9207bbc0	3.9.20-2.module_el8.10.0+4040+9207bbc0
AlmaLinux:8	python39-idna	before 2.10-4.module_el8.10.0+3849+a48d89aa	2.10-4.module_el8.10.0+3849+a48d89aa
AlmaLinux:8	python39-iniconfig	before 1.1.1-2.module_el8.6.0+2780+a40f65e1	1.1.1-2.module_el8.6.0+2780+a40f65e1
AlmaLinux:8	python39-libs	before 3.9.20-2.module_el8.10.0+4040+9207bbc0	3.9.20-2.module_el8.10.0+4040+9207bbc0
AlmaLinux:8	python39-lxml	before 4.6.5-1.module_el8.6.0+2780+a40f65e1	4.6.5-1.module_el8.6.0+2780+a40f65e1
AlmaLinux:8	python39-lxml	before 4.6.5-1.module_el8.6.0+3248+c431e88c	4.6.5-1.module_el8.6.0+3248+c431e88c