CVE-2026-110650

CRITICAL 9.8

Thumbnail through 1.5 OS Command Injection via generate_thumbnail File Paths

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

The thumbnail Python package through 1.5 contains an OS command injection vulnerability in generate_thumbnail() that allows attackers to execute commands by supplying shell metacharacters in file paths. Attackers who control a file name passed to generate_thumbnail, such as an uploaded file, can inject commands into os.system() calls running ffmpeg, convert or unoconv with the Python process privileges.

CWE	CWE-78
Vendor	anshulkharb
Product	thumbnail
Published	Oct 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

anshulkharb / thumbnail

0 ≤ 1.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/anshulkharb/thumbnail/pull/9 github.com: https://github.com/anshulkharb/thumbnail/blob/23b2e30509c936872a3bafac65b4aa48777e794c/thumbnail/thumbnail.py#L100-L114 vulncheck.com: https://www.vulncheck.com/advisories/thumbnail-through-1.5-os-command-injection-via-generate-thumbnail-file-paths

Credits

Zachariah Mithani