CVE-2026-74791

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

Score 8.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-16. A secondary CVSS source baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.6Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Scriban before 7.0.0 fails to clear the CachedTemplates dictionary when TemplateContext.Reset() is called, allowing cached templates to persist across reused contexts. Attackers can exploit request-dependent ITemplateLoader implementations to access previously authorized template content from earlier renders without triggering TemplateLoader.Load() again.

CVSS v3
8.6
EG Score
8.6HIGHmedium confidence
EG Risk
70
EG Risk 70/100CISA 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
Severity86% × 45%
Exploitation40% × 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
0.4%
EPSS %ILE
35th
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 public PoC (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 16, 2026

Last Modified

August 31, 2026

Advisory Details (2)

Auto-updated Aug 16, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Scriban before 7.0.0 Authorization Bypass via Stale Include Cache | Advisories | VulnCheck

https://www.vulncheck.com/advisories/scriban-before-authorization-bypass-via-stale-include-cache
github Patch Available🟡 PoC Available

Stale include cache survives TemplateContext.Reset() leading to authorization bypass · Advisory · scriban/scriban · GitHub

https://github.com/scriban/scriban/security/advisories/GHSA-x6m9-38vm-2xhf

Vendor Advisories for CVE-2026-74791(1)

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

Affected Packages

(2 across 1 ecosystem)
NuGet(2)
PackageVulnerable rangeFix by version rangeDependents
scriban0.1.0 ... 6.6.0 (123 versions)
  • every version up to 7.0.0: fixed in 7.0.0
—
Scriban.Signed0.10.0 ... 6.6.0 (111 versions)
  • every version up to 7.0.0: fixed in 7.0.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 98× 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 182 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-74791?
CVE-2026-74791 is a high vulnerability published on August 16, 2026. Scriban before 7.0.0 fails to clear the CachedTemplates dictionary when TemplateContext.Reset() is called, allowing cached templates to persist across reused contexts. Attackers can exploit request-dependent ITemplateLoader implementations to access previously authorized template content from…
When was CVE-2026-74791 disclosed?
CVE-2026-74791 was first published on August 16, 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-2026-74791 actively exploited?
CVE-2026-74791 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74791?
CVE-2026-74791 has a CVSS base score of 8.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-74791?
A fix for CVE-2026-74791 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74791 are linked in the Vendor Advisories panel on this page.

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