CVE-2025-13327 | Uv: uv: specially crafted zip archives lead to arbitrary code execution due to parsing differentials

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.

Published: 2026-02-27 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-13327 is rated Low Risk (26.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.15%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-13327

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.02% 0.15% +0.13%
2 2026-02-27 — 0.02% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-13327

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.3 3.1 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.3 5.9 [email protected]
6.3 3.1 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.3 5.9 [email protected]

Weakness enumeration for CVE-2025-13327

GitHub Security Advisory for CVE-2025-13327

GHSA-v653-r55g-hcmg · Severity: medium · Ecosystem: rust — uv has ZIP payload obfuscation through parsing differentials

OS Trackers for CVE-2025-13327

vendor priority summary link
debian unimportant CVE-2025-13327 unimportant priority: Debian including 1 source packages (uv), 2 status rows across 2 suites (forky, sid): resolved 2. https://security-tracker.debian.org/tracker/CVE-2025-13327
redhat medium — https://access.redhat.com/security/cve/CVE-2025-13327
suse high CVE-2025-13327 severity important: SUSE including 7 source package names (2.2.1-5.61:shim-16.1-slfo.1.1_1.1, latest:shim-16.1-slfo.1.1_1.1, …), 33 product×package rows across 29 product lines (Container suse/sl-micro/6.0/base-os-container, Container suse/sl-micro/6.1/base-os-container, … (29 product lines)): Fixed 32, First Fixed 1. https://www.suse.com/security/cve/CVE-2025-13327/

Affected software / configurations for CVE-2025-13327

Vendor Product Version Raw CPE
astral uv < 0.9.6 cpe:2.3:a:astral:uv:*:*:*:*:*:python:*:*

References for CVE-2025-13327

cvelogic Threat Intelligence