High severity · published Oct 13, 2026
CVE-2026-109961
Froxlor 0.10.0 before 2.3.14 Newline Injection via Ftps.add additional_members
8.5
CVSS
0.2%
EPSS
No
On KEV
Description
Froxlor 0.10.0 before 2.3.14 contains a newline injection vulnerability that allows authenticated customers to inject arbitrary entries into the root-owned NSS group database via the unvalidated additional_members parameter of the Ftps.add API. Attackers can embed newline characters that the REBUILD_NSSUSERS cron writes unsanitized into /var/lib/extrausers/group, creating privileged group entries for local privilege escalation.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
froxlor · froxlor
0.10.0 before 2.3.14 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109961
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109961
vendor-advisory
https://github.com/froxlor/froxlor/security/advisories/GHSA-v44g-c58r-37w2
third-party-advisory
https://www.vulncheck.com/advisories/froxlor-0.10.0-before-2.3.14-newline-injection-via-ftps-add-additional-members
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