CVE-2026-42018

CRITICALPre-NVD 7.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-09-11), indicating real-world exploitation has been confirmed by US federal agencies. A secondary CVSS source baseline 7.5 retained for reference (NVD's own analysis pending). Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, secondary
Trending — 3 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictMitigate nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 9.8%CVSS: 7.5Exploit: cisa kev · ssvc active · epss top5pct · public exploitExposed services: Not assessed

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

JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.

CVSS v3
7.5
EG Score
9.0CRITICALhigh confidence
EG Risk
96
EG Risk 96/100CISA 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
Severity90% × 45%
Exploitation100% × 40%
Automatability100% × 15%
CISA SSVC: Attend at low or medium mission impact; Act at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation sooner than your standard update timelines at low or medium mission impact and as soon as possible at high, and watch the vendor's advisory for the fix.
EPSS PROB
9.8%
EPSS %ILE
95th
KEV
⚠ Exploited

CISA SSVCAttend at low or medium mission impact; Act at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation sooner than your standard update timelines at low or medium mission impact and as soon as possible at high, and watch the vendor's advisory for the fix.

Exploitation active (CISA Vulnrichment) · Automatable yes (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 12, 2026

Last Modified

October 1, 2026

Advisory Details (2)

Auto-updated Aug 12, 2026
No patch confirmed yet.
generic

Artifactory Self-Managed Releases

https://docs.jfrog.com/releases/docs/artifactory-self-managed-releases
generic

JFrog Security Advisories

https://docs.jfrog.com/releases/docs/jfrog-security-advisories

Vendor Advisories for CVE-2026-42018(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 57× in last 7d / 228× 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 326 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2026/CVE-2026-42018.yaml
    First seen Jan 1, 2026

    JFrog Artifactory - Anonymous Token Disclosure via Trailing Slash Auth Bypass

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2026-42018?
CVE-2026-42018 is a critical vulnerability published on August 12, 2026. JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller when anonymous access is disabled, potentially exposing sensitive resources.
When was CVE-2026-42018 disclosed?
CVE-2026-42018 was first published on August 12, 2026, with the most recent update on October 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42018 actively exploited?
Yes. CISA added CVE-2026-42018 to the Known Exploited Vulnerabilities catalog on September 11, 2026, affecting JFrog Artifactory. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation, and watch the vendor's advisory for the fix.
What is the CVSS score of CVE-2026-42018?
CVE-2026-42018 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2026-42018?
CVE-2026-42018 affects JFrog Artifactory.
How do I remediate CVE-2026-42018?
No fix for CVE-2026-42018 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-42018 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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