CVE-2026-122015: NPC-Worldwide npcpy · Improper Input Validation
Affects npcpySource GCVE Database
Public exploit available · CVSS 5.3 Medium : upgrade to 2.1.28 as a priority.
Data as of 5 Nov 2026, 01:30 UTC
Thin evidence
One scorer or none| CNA (VulDB) | CVSS 4.0 | 5.3 |
|---|---|---|
| CNA (VulDB) | CVSS 3.1 | 6.3 |
| CNA (VulDB) | CVSS 3.0 | 6.3 |
| CNA (VulDB) | CVSS 2.0 | 7.5 |
- Affects
- NPC-Worldwide npcpy up to 2.1.27
- Patch
- Available – fixed in 2.1.28
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 4 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade npc-worldwide/npcpy to 2.1.28.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubnpc-worldwide/npcpypkg:github/npc-worldwide/npcpyOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
A vulnerability in NPC-Worldwide npcpy up to version 2.1.27 affects the get_mlx_response function in the MLX Provider component. The flaw involves improper input validation of the 'model' argument, which can be exploited remotely. Public exploit code is available. The CVSS score is 6.3, indicating a medium severity impact.
References
- nvd.nist.gov/vuln/detail/CVE-2026-122015 (opens in a new tab)
- github.com/NPC-Worldwide/npcpy/issues/309 (opens in a new tab)
- github.com/NPC-Worldwide/npcpy (opens in a new tab)
- github.com/user-attachments/files/33302583/poc.zip (opens in a new tab)
- vuldb.com/cve/CVE-2026-122015 (opens in a new tab)
- vuldb.com/submit/1024531 (opens in a new tab)
- vuldb.com/vuln/431083 (opens in a new tab)
- vuldb.com/vuln/431083/cti (opens in a new tab)