CVE-2026-19266

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM 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: 3.9%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
5.5MEDIUMmedium confidence
EG Risk
26
EG Risk 26/100CISA SSVC

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%
Exploitation4% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
3.9%
EPSS %ILE
89th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

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 13× in last 7d / 64× 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.

Showing the most recent 100 of 148 total refreshes for this CVE.

  1. 2026-10-05 08:10 UTCGHSA enrichment
  2. 2026-10-04 05:41 UTCEG score recompute
  3. 2026-10-04 05:41 UTCGHSA enrichment
  4. 2026-10-02 09:29 UTCEG score recompute
  5. 2026-10-02 09:29 UTCGHSA enrichment
  6. 2026-10-01 19:49 UTCEPSS rescore
  7. 2026-09-30 22:53 UTCEG score recompute
  8. 2026-09-30 22:53 UTCGHSA enrichment
  9. 2026-09-30 15:02 UTCEPSS rescore
  10. 2026-09-29 15:20 UTCEPSS rescore
  11. 2026-09-29 05:41 UTCEG score recompute
  12. 2026-09-29 05:41 UTCGHSA enrichment
  13. 2026-09-28 13:51 UTCEPSS rescore
  14. 2026-09-27 17:05 UTCEG score recompute
  15. 2026-09-27 17:05 UTCGHSA enrichment
  16. 2026-09-27 13:47 UTCEPSS rescore
  17. 2026-09-26 15:58 UTCEPSS rescore
  18. 2026-09-25 04:11 UTCEG score recompute
  19. 2026-09-25 04:11 UTCGHSA enrichment
  20. 2026-09-23 21:33 UTCEG score recompute
  21. 2026-09-23 21:33 UTCGHSA enrichment
  22. 2026-09-22 23:05 UTCEG score recompute
  23. 2026-09-22 23:05 UTCGHSA enrichment
  24. 2026-09-22 00:37 UTCEG score recompute
  25. 2026-09-22 00:37 UTCGHSA enrichment
Show 75 more
  1. 2026-09-20 20:32 UTCEG score recompute
  2. 2026-09-20 20:32 UTCGHSA enrichment
  3. 2026-09-19 21:55 UTCEG score recompute
  4. 2026-09-19 21:55 UTCGHSA enrichment
  5. 2026-09-18 23:23 UTCEG score recompute
  6. 2026-09-18 23:23 UTCGHSA enrichment
  7. 2026-09-18 19:27 UTCEPSS rescore
  8. 2026-09-18 00:55 UTCEG score recompute
  9. 2026-09-18 00:55 UTCGHSA enrichment
  10. 2026-09-17 01:17 UTCEG score recompute
  11. 2026-09-17 01:17 UTCGHSA enrichment
  12. 2026-09-16 14:07 UTCEPSS rescore
  13. 2026-09-16 05:14 UTCEPSS rescore
  14. 2026-09-16 02:48 UTCEG score recompute
  15. 2026-09-16 02:48 UTCGHSA enrichment
  16. 2026-09-15 00:56 UTCGHSA enrichment
  17. 2026-09-13 22:21 UTCEG score recompute
  18. 2026-09-13 22:21 UTCGHSA enrichment
  19. 2026-09-13 16:46 UTCEPSS rescore
  20. 2026-09-12 23:52 UTCEG score recompute
  21. 2026-09-12 23:52 UTCGHSA enrichment
  22. 2026-09-12 15:00 UTCEPSS rescore
  23. 2026-09-12 01:24 UTCEG score recompute
  24. 2026-09-12 01:24 UTCGHSA enrichment
  25. 2026-09-11 14:52 UTCEPSS rescore
  26. 2026-09-11 09:36 UTCEPSS rescore
  27. 2026-09-11 02:56 UTCEG score recompute
  28. 2026-09-11 02:56 UTCGHSA enrichment
  29. 2026-09-10 09:34 UTCEPSS rescore
  30. 2026-09-10 04:27 UTCGHSA enrichment
  31. 2026-09-09 05:59 UTCEG score recompute
  32. 2026-09-09 05:59 UTCGHSA enrichment
  33. 2026-09-08 22:00 UTCEPSS rescore
  34. 2026-09-07 17:41 UTCEG score recompute
  35. 2026-09-07 17:41 UTCGHSA enrichment
  36. 2026-09-07 16:01 UTCEPSS rescore
  37. 2026-09-06 13:47 UTCEPSS rescore
  38. 2026-09-06 05:32 UTCEG score recompute
  39. 2026-09-06 05:32 UTCGHSA enrichment
  40. 2026-09-05 07:03 UTCEG score recompute
  41. 2026-09-05 07:03 UTCGHSA enrichment
  42. 2026-09-04 08:34 UTCEG score recompute
  43. 2026-09-04 08:34 UTCGHSA enrichment
  44. 2026-09-04 05:06 UTCEPSS rescore
  45. 2026-09-03 05:58 UTCEG score recompute
  46. 2026-09-03 05:58 UTCGHSA enrichment
  47. 2026-09-02 14:11 UTCEPSS rescore
  48. 2026-09-02 06:42 UTCEG score recompute
  49. 2026-09-02 06:42 UTCGHSA enrichment
  50. 2026-09-01 13:53 UTCEPSS rescore
  51. 2026-09-01 07:10 UTCEG score recompute
  52. 2026-09-01 07:10 UTCGHSA enrichment
  53. 2026-09-01 04:39 UTCEPSS rescore
  54. 2026-08-31 07:45 UTCEG score recompute
  55. 2026-08-31 07:45 UTCGHSA enrichment
  56. 2026-08-30 19:17 UTCEPSS rescore
  57. 2026-08-30 09:16 UTCEG score recompute
  58. 2026-08-30 09:16 UTCGHSA enrichment
  59. 2026-08-30 01:22 UTCEPSS rescore
  60. 2026-08-29 10:19 UTCEG score recompute
  61. 2026-08-29 10:19 UTCGHSA enrichment
  62. 2026-08-28 21:41 UTCEPSS rescore
  63. 2026-08-27 21:30 UTCEG score recompute
  64. 2026-08-27 21:30 UTCGHSA enrichment
  65. 2026-08-27 14:25 UTCEPSS rescore
  66. 2026-08-26 23:02 UTCEG score recompute
  67. 2026-08-26 23:02 UTCGHSA enrichment
  68. 2026-08-26 14:46 UTCEPSS rescore
  69. 2026-08-26 00:33 UTCEG score recompute
  70. 2026-08-26 00:33 UTCGHSA enrichment
  71. 2026-08-25 13:48 UTCEPSS rescore
  72. 2026-08-25 02:05 UTCEG score recompute
  73. 2026-08-25 02:05 UTCGHSA enrichment
  74. 2026-08-24 03:37 UTCGHSA enrichment
  75. 2026-08-23 05:09 UTCEG score recompute

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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 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 3.9% probability of exploitation in the next 30 days (89th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19266?
CVE-2026-19266 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19266?
A fix for CVE-2026-19266 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-19266 are linked in the Vendor Advisories panel on this page.

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