PYSEC-2026-1986

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/transformers/PYSEC-2026-1986.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-1986
Aliases
Published
2026-07-07T16:02:56.629377Z
Modified
2026-07-07T17:48:14.438962028Z
Severity
  • 3.5 (Low) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Transformers's Improper Input Validation vulnerability can be exploited through username injection
Details

Hugging Face Transformers versions up to 4.49.0 are affected by an improper input validation vulnerability in the image_utils.py file. The vulnerability arises from insecure URL validation using the startswith() method, which can be bypassed through URL username injection. This allows attackers to craft URLs that appear to be from YouTube but resolve to malicious domains, potentially leading to phishing attacks, malware distribution, or data exfiltration. The issue is fixed in version 4.52.1.

References

Affected packages

PyPI / transformers

Package

Name
transformers
View open source insights on deps.dev
Purl
pkg:pypi/transformers

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.52.1

Affected versions

0.*
0.1
2.*
2.0.0
2.1.0
2.1.1
2.2.0
2.2.1
2.2.2
2.3.0
2.4.0
2.4.1
2.5.0
2.5.1
2.6.0
2.7.0
2.8.0
2.9.0
2.9.1
2.10.0
2.11.0
3.*
3.0.0
3.0.1
3.0.2
3.1.0
3.2.0
3.3.0
3.3.1
3.4.0
3.5.0
3.5.1
4.*
4.0.0rc1
4.0.0
4.0.1
4.1.0
4.1.1
4.2.0
4.2.1
4.2.2
4.3.0rc1
4.3.0
4.3.1
4.3.2
4.3.3
4.4.0
4.4.1
4.4.2
4.5.0
4.5.1
4.6.0
4.6.1
4.7.0
4.8.0
4.8.1
4.8.2
4.9.0
4.9.1
4.9.2
4.10.0
4.10.1
4.10.2
4.10.3
4.11.0
4.11.1
4.11.2
4.11.3
4.12.0
4.12.1
4.12.2
4.12.3
4.12.4
4.12.5
4.13.0
4.14.0
4.14.1
4.15.0
4.16.0
4.16.1
4.16.2
4.17.0
4.18.0
4.19.0
4.19.1
4.19.2
4.19.3
4.19.4
4.20.0
4.20.1
4.21.0
4.21.1
4.21.2
4.21.3
4.22.0
4.22.1
4.22.2
4.23.0
4.23.1
4.24.0
4.25.0
4.25.1
4.26.0
4.26.1
4.27.0
4.27.1
4.27.2
4.27.3
4.27.4
4.28.0
4.28.1
4.29.0
4.29.1
4.29.2
4.30.0
4.30.1
4.30.2
4.31.0
4.32.0
4.32.1
4.33.0
4.33.1
4.33.2
4.33.3
4.34.0
4.34.1
4.35.0
4.35.1
4.35.2
4.36.0
4.36.1
4.36.2
4.37.0
4.37.1
4.37.2
4.38.0
4.38.1
4.38.2
4.39.0
4.39.1
4.39.2
4.39.3
4.40.0
4.40.1
4.40.2
4.41.0
4.41.1
4.41.2
4.42.0
4.42.1
4.42.2
4.42.3
4.42.4
4.43.0
4.43.1
4.43.2
4.43.3
4.43.4
4.44.0
4.44.1
4.44.2
4.45.0
4.45.1
4.45.2
4.46.0
4.46.1
4.46.2
4.46.3
4.47.0
4.47.1
4.48.0
4.48.1
4.48.2
4.48.3
4.49.0
4.50.0
4.50.1
4.50.2
4.50.3
4.51.0
4.51.1
4.51.2
4.51.3
4.52.0

Database specific

source 
"https://github.com/pypa/advisory-database/blob/main/vulns/transformers/PYSEC-2026-1986.yaml"