CVE-2026-74791

HIGHPre-NVD 8.68.6—
EchelonGraph scoreHIGH 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 — 4 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%CVSS: 8.6Exploit: Elevated riskExposed: 0

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

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
8.6(high)
EG Risk
70(Attend)
EG Risk 70/100SSVC: Attend

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%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

August 16, 2026

Last Modified

August 17, 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 rangeFixed inDependents
scriban0.1.0 ... 6.6.0 (123 versions)7.0.0—
Scriban.Signed0.10.0 ... 6.6.0 (111 versions)7.0.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 24× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 19:51 UTCGHSA enrichment
  3. 2026-08-20 07:39 UTCGHSA enrichment
  4. 2026-08-19 19:26 UTCEG score recompute
  5. 2026-08-19 19:26 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 07:14 UTCGHSA enrichment
  8. 2026-08-18 19:00 UTCEG score recompute
  9. 2026-08-18 19:00 UTCGHSA enrichment
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 06:47 UTCGHSA enrichment
  13. 2026-08-17 18:32 UTCEG score recompute
  14. 2026-08-17 18:31 UTCGHSA enrichment
  15. 2026-08-17 17:47 UTCEG score recompute
  16. 2026-08-17 17:47 UTCGHSA enrichment
  17. 2026-08-17 15:00 UTCEG score recompute
  18. 2026-08-17 15:00 UTCGHSA enrichment
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 02:48 UTCEG score recompute
  21. 2026-08-17 02:48 UTCGHSA enrichment
  22. 2026-08-16 14:36 UTCEG score recompute
  23. 2026-08-16 13:27 UTCEG score recompute
  24. 2026-08-16 13:26 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database on August 16, 2026, with the most recent update on August 17, 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% probability of exploitation in the next 30 days, which ranks it in the top 80.8% of all scored CVEs.
What is the CVSS score of CVE-2026-74791?
CVE-2026-74791 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-74791?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74791, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-74791

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