CVE-2026-18749

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-13. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The type=track branch authorises on _is_my_case(t_attach.case) only and never checks VinceTrackAttachment.shared. A coordinator-uploaded case artefact that has NOT been marked shared is still retrievable by any case member who has (or is sent) its uuid — leaks not-yet-released coordinator material to vendors on the case.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100CISA 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
41st
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 12, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 29, 2026
Patch available. Sources: github_pr.
github_pr Patch Available

Version 3.0.44 updates

Patch available: CERTCC/VINCE 3.0.44 (PR #235 merged 2026-08-13)

https://github.com/CERTCC/VINCE/pull/235
generic

GitHub - CERTCC/VINCE: VINCE is the Vulnerability Information and Coordination Environment developed and used by the CERT Coordination Center to improve coordinated vulnerability disclosure. VINCE is a Python-based web platform. · GitHub

https://github.com/CERTCC/VINCE

Vendor Advisories for CVE-2026-18749(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 29× in last 7d / 160× 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 323 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-18749?
CVE-2026-18749 is a critical vulnerability published on August 12, 2026. The type=track branch authorises on ismycase(tattach.case) only and never checks VinceTrackAttachment.shared. A coordinator-uploaded case artefact that has NOT been marked shared is still retrievable by any case member who has (or is sent) its uuid — leaks not-yet-released coordinator material to…
When was CVE-2026-18749 disclosed?
CVE-2026-18749 was first published on August 12, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18749 actively exploited?
CVE-2026-18749 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (41st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18749?
CVE-2026-18749 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-18749?
A fix for CVE-2026-18749 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-18749 are linked in the Vendor Advisories panel on this page.

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