High severity · published Oct 12, 2026
CVE-2026-109205
LogicalDOC Community Edition through 9.3 Unauthenticated Upload Disk Exhaustion via UploadServlet
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
LogicalDOC Community Edition through 9.3 contains an unauthenticated file upload vulnerability in the UploadServlet that allows remote attackers to write files to disk without a session. Attackers can repeatedly send multipart requests with unlimited file parts to /upload, persisting files in uncleaned temporary directories and exhausting server disk space.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LC
LogicalDOC Community Edition · LogicalDOC
through 9.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109205
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109205
technical-description
https://github.com/logicaldoc/community/discussions/119
patch
https://github.com/logicaldoc/community/commit/90b7ebea5330feab94aff5ef0573362f3e52a1cc
technical-description
https://github.com/logicaldoc/community/blob/9.3/logicaldoc-webapp/src/main/java/com/logicaldoc/web/UploadServlet.java#L128
product
https://github.com/logicaldoc/community
third-party-advisory
https://www.vulncheck.com/advisories/logicaldoc-community-edition-through-9.3-unauthenticated-upload-disk-exhaustion-via-uploadservlet
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