CVE-2026-19266Public exploit

Authenticated host command execution via shell-enabled Git spawn

Published Aug 8, 2026 · Updated Aug 8, 2026

Command injection in Kirachon Context Engine 1.9.0 and earlier allows remote authenticated users to execute host OS commands via review_git_diff. The target, base, and include_patterns values reach execGitCommand, which passes them to spawn with shell execution enabled, so shell metacharacters become commands. Reachability requires access to the review path; injected commands run with the Context Engine server process's privileges and can affect host data and availability.

CVSS severity5.1
Medium
EPSS probability1.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Kirachon Context Engine 1.9.0 and earlier allows remote authenticated users to execute host OS commands via review_git_diff. The target, base, and include_patterns values reach execGitCommand, which passes them to spawn with shell execution enabled, so shell metacharacters become commands. Reachability requires access to the review path; injected commands run with the Context Engine server process's privileges and can affect host data and availability.

The record

CVE
CVE-2026-19266
Published
Aug 8, 2026
Updated
Aug 8, 2026
Vendor
Kirachon
Product
Context Engine
Classifications
CWE-74, T1059
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0
  2. Affected versionversion=1.1
  3. Affected versionversion=1.2
  4. Affected versionversion=1.3
  5. Affected versionversion=1.4
  6. Affected versionversion=1.5
  7. Affected versionversion=1.6
  8. Affected versionversion=1.7
  9. Affected versionversion=1.8
  10. Affected versionversion=1.9.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Kirachon · Context Engineversion=1.0; version=1.1; version=1.2; version=1.3; version=1.4; version=1.5; version=1.6; version=1.7; version=1.8; version=1.9.0

Published CVSS scores

5.1GitHub Advisory DatabaseCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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