CVE-2026-110650

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.

CVSS 4.0

9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

3.0% chance of exploitation in the next 30 days; higher than 87% of CVEs (scores of 2026-10-25)

CWE

CWE-78

Published

2026-10-14

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

References

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

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