CVE-2026-67921

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-18. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
9.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.3Exploit: Elevated riskExposed: 0

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

Cross-Site Request Forgery (CSRF) vulnerability exists in Halo CMS versions up to 2.25.4 via the CorsConfigurer.java and the CsrfConfigurer.java components. This allows a remote attacker to execute arbitrary code.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
58(Track*)
EG Risk 58/100SSVC: 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
Severity93% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

August 18, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

CVE-2026-67921.md · GitHub

https://gist.github.com/unpredictable21/01b053bcf8bb5a3c557df92f5c2c3c30
generic

GitHub - halo-dev/halo: Halo 是一款强大易用的开源建站工具，从个人博客、知识库，到企业官网、在线商城，Halo 都能助您轻松实现，一站式满足您的多样化建站需求。 · GitHub

https://github.com/halo-dev/halo

Vendor Advisories for CVE-2026-67921(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 49× in last 7d / 214× 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 228 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-67921?
CVE-2026-67921 is a critical vulnerability published on August 18, 2026. Cross-Site Request Forgery (CSRF) vulnerability exists in Halo CMS versions up to 2.25.4 via the CorsConfigurer.java and the CsrfConfigurer.java components. This allows a remote attacker to execute arbitrary code.
When was CVE-2026-67921 disclosed?
CVE-2026-67921 was first published in the National Vulnerability Database on August 18, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67921 actively exploited?
CVE-2026-67921 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 89.9% of all scored CVEs.
What is the CVSS score of CVE-2026-67921?
CVE-2026-67921 has a CVSS v3.1 base score of 9.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-67921?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67921, 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.

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