Arbitrary File Write via TarSlip in dmlc/gluon-cv

published 2025-03-20 19 mo ago modified 2026-07-07 4 mo ago also GHSA-m724-hqmc-ggpx , PYSEC-2026-1406 , EUVD-2025-7031

cvss: 7.1; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits: 0; none known

A vulnerability in the `ImageClassificationDataset.from_csv()` API of the `dmlc/gluon-cv` repository, version 0.10.0, allows for arbitrary file write. The function downloads and extracts `tar.gz` files from URLs without proper sanitization, making it susceptible to a TarSlip vulnerability. Attackers can exploit this by crafting malicious tar files that, when extracted, can overwrite files on the victim's system via path traversal or faked symlinks.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 19 mo ago (2025-03-20)

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.1	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
GitHub	3.0	7.1	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
OSV	3.0	7.1	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	gluoncv	<=0.10.0	no fix listed

Affected products

dmlc dmlc/gluon-cv

Classification

Weakness

CWE-59 Improper Link Resolution Before File Access
CWE-20 Improper Input Validation
CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary