CVE-2026-70374

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-05. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

HashBrown CMS through 1.4.6 contains an OS Command Injection vulnerability (CWE-78) in the media upload thumbnail generation routine. Media.generateThumbnail in src/Server/Entity/Resource/Media.js builds a temporary file path as 'thumbnail' + Path.extname(filename) and passes it, unescaped, into a shell command executed via AppService.exec ('convert ' + tempFile + ...).

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
59%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 10, 2026

Advisory Details (2)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

Turan Security | CVE Portal

https://cve.turansec.uz/advisories/TRN-11FC0D88
generic

GitHub - HashBrownCMS/hashbrown-cms: A free and open-source headless CMS · GitHub

https://github.com/HashBrownCMS/hashbrown-cms

Vendor Advisories for CVE-2026-70374(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 31× in last 7d / 81× 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. 2026-08-21 06:20 UTCEG score recompute
  2. 2026-08-21 06:20 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 18:36 UTCGHSA enrichment
  5. 2026-08-20 06:53 UTCGHSA enrichment
  6. 2026-08-19 19:10 UTCEG score recompute
  7. 2026-08-19 19:09 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 07:22 UTCGHSA enrichment
  10. 2026-08-18 19:39 UTCEG score recompute
  11. 2026-08-18 19:39 UTCGHSA enrichment
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 07:55 UTCGHSA enrichment
  15. 2026-08-17 20:13 UTCEG score recompute
  16. 2026-08-17 20:12 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 08:25 UTCGHSA enrichment
  19. 2026-08-16 20:42 UTCEG score recompute
  20. 2026-08-16 20:42 UTCGHSA enrichment
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 08:59 UTCEG score recompute
  24. 2026-08-16 08:59 UTCGHSA enrichment
  25. 2026-08-16 02:15 UTCEPSS rescore
Show 56 more
  1. 2026-08-15 21:16 UTCGHSA enrichment
  2. 2026-08-15 09:33 UTCEG score recompute
  3. 2026-08-15 09:33 UTCGHSA enrichment
  4. 2026-08-15 01:31 UTCEPSS rescore
  5. 2026-08-14 21:50 UTCGHSA enrichment
  6. 2026-08-14 10:07 UTCGHSA enrichment
  7. 2026-08-13 22:24 UTCEG score recompute
  8. 2026-08-13 22:24 UTCGHSA enrichment
  9. 2026-08-13 22:00 UTCEPSS rescore
  10. 2026-08-13 10:41 UTCGHSA enrichment
  11. 2026-08-12 22:58 UTCEG score recompute
  12. 2026-08-12 22:58 UTCGHSA enrichment
  13. 2026-08-12 13:51 UTCEPSS rescore
  14. 2026-08-12 11:16 UTCGHSA enrichment
  15. 2026-08-11 23:33 UTCEG score recompute
  16. 2026-08-11 23:33 UTCGHSA enrichment
  17. 2026-08-11 11:50 UTCGHSA enrichment
  18. 2026-08-11 00:07 UTCEG score recompute
  19. 2026-08-11 00:07 UTCGHSA enrichment
  20. 2026-08-11 00:00 UTCEPSS rescore
  21. 2026-08-10 12:25 UTCEG score recompute
  22. 2026-08-10 12:25 UTCGHSA enrichment
  23. 2026-08-10 12:04 UTCGHSA enrichment
  24. 2026-08-10 11:23 UTCEG score recompute
  25. 2026-08-10 11:23 UTCGHSA enrichment
  26. 2026-08-10 01:58 UTCGHSA enrichment
  27. 2026-08-09 14:15 UTCEG score recompute
  28. 2026-08-09 14:15 UTCGHSA enrichment
  29. 2026-08-09 13:47 UTCEPSS rescore
  30. 2026-08-09 02:33 UTCEG score recompute
  31. 2026-08-09 02:33 UTCGHSA enrichment
  32. 2026-08-08 16:37 UTCEPSS rescore
  33. 2026-08-08 14:50 UTCGHSA enrichment
  34. 2026-08-08 03:06 UTCEG score recompute
  35. 2026-08-08 03:06 UTCGHSA enrichment
  36. 2026-08-07 15:23 UTCGHSA enrichment
  37. 2026-08-07 03:40 UTCGHSA enrichment
  38. 2026-08-06 15:57 UTCEG score recompute
  39. 2026-08-06 15:57 UTCGHSA enrichment
  40. 2026-08-06 13:47 UTCEPSS rescore
  41. 2026-08-06 04:14 UTCEG score recompute
  42. 2026-08-06 04:14 UTCGHSA enrichment
  43. 2026-08-05 19:17 UTCEPSS rescore
  44. 2026-08-05 19:17 UTCEPSS rescore
  45. 2026-08-05 16:31 UTCEG score recompute
  46. 2026-08-05 16:31 UTCGHSA enrichment
  47. 2026-08-05 15:28 UTCEG score recompute
  48. 2026-08-05 15:28 UTCGHSA enrichment
  49. 2026-08-05 13:29 UTCEG score recompute
  50. 2026-08-05 13:29 UTCGHSA enrichment
  51. 2026-08-05 13:08 UTCEG score recompute▲ 8.80
  52. 2026-08-05 13:08 UTCGHSA enrichment
  53. 2026-08-05 13:07 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  54. 2026-08-05 07:19 UTCNVD update
  55. 2026-08-05 06:20 UTCEG score recompute
  56. 2026-08-05 06:20 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-70374?
CVE-2026-70374 is a high vulnerability published on August 5, 2026. HashBrown CMS through 1.4.6 contains an OS Command Injection vulnerability (CWE-78) in the media upload thumbnail generation routine. Media.generateThumbnail in src/Server/Entity/Resource/Media.js builds a temporary file path as 'thumbnail' + Path.extname(filename) and passes it, unescaped, into a…
When was CVE-2026-70374 disclosed?
CVE-2026-70374 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70374 actively exploited?
CVE-2026-70374 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 40.8% of all scored CVEs.
What is the CVSS score of CVE-2026-70374?
CVE-2026-70374 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-70374?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70374, 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.

Dependency Blast Radius

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