CVE-2026-118869: SHIRASAGI · OS Command Injection
Affects SHIRASAGISource CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 5 Nov 2026, 10:05 UTC
Thin evidence
One scorer or none| CNA (jpcert) | CVSS 3.0 | 8.8 |
|---|---|---|
| CNA (jpcert) | CVSS 4.0 | 8.7 |
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 5 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
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), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SHIRASAGI ProjectSHIRASAGI | Affected
| Fixed in– |
RubyGemsshirasagipkg:gem/shirasagiOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, restrict authenticated access to trusted users only and monitor for suspicious activity related to command execution. Do not assume the vulnerability is mitigated without official vendor confirmation.
Description
CVE-2026-118869 is an OS command injection vulnerability in SHIRASAGI versions 1.19.0 through 1.21.0. It allows an authenticated attacker to execute arbitrary operating system commands on the affected system without user interaction. The vulnerability has a high severity score of 8.8, indicating significant potential impact on confidentiality, integrity, and availability.