CVE-2026-8430

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-12. NVD baseline CVSS 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.1Exploit: NoneExposed: 0

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

SPIP versions prior to 4.4.14 contain a remote code execution vulnerability in the public space that is limited to certain nginx configurations, allowing attackers to execute arbitrary code in the context of the web server. Attackers can exploit this vulnerability through specific nginx configuration scenarios to achieve code execution, and this issue is not mitigated by the SPIP security screen.

CVSS v3
8.1
EG Score
8.1(medium)
EPSS
35.2%
KEV
Not listed

Published

May 12, 2026

Last Modified

July 14, 2026

Advisory Details (2)

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

SPIP < 4.4.14 Remote Code Execution via nginx | Advisories | VulnCheck

https://www.vulncheck.com/advisories/spip-prior-to-remote-code-execution-via-nginx
generic

SPIP Blog - Du logiciel libre et de la tendresse

https://blog.spip.net/

Weakness Classification(1)

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

Data Freshness Timeline

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8430?
CVE-2026-8430 is a high vulnerability published on May 12, 2026. SPIP versions prior to 4.4.14 contain a remote code execution vulnerability in the public space that is limited to certain nginx configurations, allowing attackers to execute arbitrary code in the context of the web server. Attackers can exploit this vulnerability through specific nginx…
When was CVE-2026-8430 disclosed?
CVE-2026-8430 was first published in the National Vulnerability Database on May 12, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8430 actively exploited?
CVE-2026-8430 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8430?
CVE-2026-8430 has a CVSS v4.0 base score of 8.1 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-8430?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8430, 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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