6.3

CVE-2025-13327: astral-sh uv

CVSS: 6.3v3.1MediumAnalyzed
AliasesGHSA-pqhf-p39g-3x64GHSA-v653-r55g-hcmgPYSEC-2026-2295
Published 27-02-2026Last modified 18-03-2026
Open JSON

Vulnerability summary

CVE-2025-13327 is a medium (CVSS 6.3) vulnerability in astral-sh uv. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.3% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-02-2026
    PublishedVulnerability first disclosed.
  2. 18-03-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in uv. This vulnerability allows an attacker to execute malicious code during package resolution or installation via specially crafted ZIP (Zipped Information Package) archives that exploit parsing differentials, requiring user interaction to install an attacker-controlled package.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

+0.01 pp

From 0.15% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Astral1 product
Astral-sh1 product
Crates.Io1 product
  • uv< 0.9.6
Opensuse1 product
  • python-uv&distro=openSUSE Leap 16.0< 0.7.18-160000.4.1
PyPI1 product
  • uv< 0.9.6

5 vendors · 5 products

References

8 links