CVE-2026-19266

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory published 2026-08-08. a secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 5.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability was determined in Kirachon context-engine up to 1.9.0. This affects the function execGitCommand of the file src/mcp/utils/gitUtils.ts of the component review-git-diff Endpoint. Executing a manipulation of the argument args can lead to command injection. Upgrading to version 1.9.1 mitigates this issue. This patch is called e0729dcfd3a2b1682a7bff86e7174852c03419ba. It is advisable to upgrade the affected component.

CVSS v3
5.5
EG Score
5.5(high)
EG Risk
25(Track)
EG Risk 25/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation2% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
73%
KEV
Not listed

Published

August 8, 2026

Last Modified

August 12, 2026

Advisory Details (5)

Auto-updated Aug 8, 2026
Patch available. Sources: github_commit, github_release.
github_release Patch Available

v1.9.1

Patch available: Kirachon/context-engine v1.9.1

https://github.com/Kirachon/context-engine/releases/tag/v1.9.1
generic

Issue · GitHub

https://github.com/Kirachon/context-engine/issues/16#issuecomment-4321217057
generic

Issue · GitHub

https://github.com/Kirachon/context-engine/issues/16
github_commit Patch Available

commit e0729dcfd3a2 (Kirachon/context-engine)

Patch available: Kirachon/context-engine v1.9.1 (contains commit e0729dcfd3a2)

https://github.com/Kirachon/context-engine/commit/e0729dcfd3a2b1682a7bff86e7174852c03419ba
generic

GitHub - Kirachon/context-engine: Local-native Context Engine MCP server for codebase indexing, semantic retrieval, planning, and review workflows. · GitHub

https://github.com/Kirachon/context-engine/

Vendor Advisories for CVE-2026-19266(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 09:44 UTCEG score recompute
  3. 2026-08-20 09:44 UTCGHSA enrichment
  4. 2026-08-19 17:03 UTCEPSS rescore
  5. 2026-08-19 11:16 UTCEG score recompute
  6. 2026-08-19 11:16 UTCGHSA enrichment
  7. 2026-08-18 13:48 UTCEPSS rescore
  8. 2026-08-18 12:46 UTCEG score recompute
  9. 2026-08-18 12:46 UTCGHSA enrichment
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-17 13:43 UTCGHSA enrichment
  12. 2026-08-16 15:15 UTCEG score recompute
  13. 2026-08-16 15:15 UTCGHSA enrichment
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 02:14 UTCEPSS rescore
  16. 2026-08-15 16:47 UTCEG score recompute
  17. 2026-08-15 16:47 UTCGHSA enrichment
  18. 2026-08-15 01:30 UTCEPSS rescore
  19. 2026-08-14 18:18 UTCEG score recompute
  20. 2026-08-14 18:18 UTCGHSA enrichment
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-13 19:50 UTCGHSA enrichment
  23. 2026-08-12 21:22 UTCGHSA enrichment
  24. 2026-08-12 21:04 UTCEG score recompute
  25. 2026-08-12 21:04 UTCGHSA enrichment
Show 16 more
  1. 2026-08-12 13:50 UTCEPSS rescore
  2. 2026-08-12 02:14 UTCEG score recompute
  3. 2026-08-12 02:14 UTCGHSA enrichment
  4. 2026-08-11 13:42 UTCEPSS rescore
  5. 2026-08-11 03:45 UTCEG score recompute
  6. 2026-08-11 03:45 UTCGHSA enrichment
  7. 2026-08-11 00:00 UTCEPSS rescore
  8. 2026-08-10 05:17 UTCEG score recompute
  9. 2026-08-10 05:17 UTCGHSA enrichment
  10. 2026-08-09 13:46 UTCEPSS rescore
  11. 2026-08-09 06:49 UTCEG score recompute
  12. 2026-08-09 06:49 UTCGHSA enrichment
  13. 2026-08-08 16:37 UTCEPSS rescore
  14. 2026-08-08 08:21 UTCEG score recompute
  15. 2026-08-08 07:32 UTCEG score recompute
  16. 2026-08-08 07:32 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-19266?
CVE-2026-19266 is a medium vulnerability published on August 8, 2026. A vulnerability was determined in Kirachon context-engine up to 1.9.0. This affects the function execGitCommand of the file src/mcp/utils/gitUtils.ts of the component review-git-diff Endpoint. Executing a manipulation of the argument args can lead to command injection. Upgrading to version 1.9.1…
When was CVE-2026-19266 disclosed?
CVE-2026-19266 was first published in the National Vulnerability Database on August 8, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19266 actively exploited?
CVE-2026-19266 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 27.5% of all scored CVEs.
What is the CVSS score of CVE-2026-19266?
CVE-2026-19266 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-19266?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19266, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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