CVE-2026-74783

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-16. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Scriban versions 6.6.0 through 7.2.0 contain a non-enforcing ExpressionDepthLimit guard that fails to stop recursive descent parsing of deeply nested expressions. Attackers can supply templates with deeply nested parentheses, array initializers, object initializers, or unary operators to trigger an uncatchable StackOverflowException that immediately terminates the host process.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100CISA 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
Severity75% × 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
0.3%
EPSS %ILE
24th
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

September 30, 2026

Advisory Details (2)

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

Scriban 6.6.0 through 7.2.0 Parser Recursion Denial of Service | Advisories | VulnCheck

https://www.vulncheck.com/advisories/scriban-through-parser-recursion-denial-of-service
github Patch Available🟡 PoC Available

ExpressionDepthLimit guard is non-enforcing — parser-recursion DoS in 6.6.0–7.2.0 (incomplete fix for GHSA-wgh7-7m3c-fx25 / GHSA-p6q4-fgr8-vx4p) · Advisory · scriban/scriban · GitHub

Affected: 6.6.0) and

https://github.com/scriban/scriban/security/advisories/GHSA-6q7j-xr26-3h2c

Vendor Advisories for CVE-2026-74783(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
Scriban6.6.0 ... 7.2.0 (10 versions)
  • 6.6.0 up to 7.2.1: fixed in 7.2.1
—
Scriban.Signed6.6.0 ... 7.2.0 (10 versions)
  • 6.6.0 up to 7.2.1: fixed in 7.2.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 22× 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 180 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 08:25 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 01:57 UTCEG score recompute
  11. 2026-10-02 01:57 UTCGHSA enrichment
  12. 2026-10-01 19:50 UTCEPSS rescore
  13. 2026-10-01 07:41 UTCGHSA enrichment
  14. 2026-09-30 18:42 UTCEG score recompute
  15. 2026-09-30 18:42 UTCGHSA enrichment
  16. 2026-09-30 17:39 UTCEG score recompute
  17. 2026-09-30 17:39 UTCGHSA enrichment
  18. 2026-09-30 12:01 UTCEG score recompute
  19. 2026-09-30 12:01 UTCGHSA enrichment
  20. 2026-09-29 15:24 UTCEPSS rescore
  21. 2026-09-29 00:28 UTCEG score recompute
  22. 2026-09-29 00:28 UTCGHSA enrichment
  23. 2026-09-28 11:27 UTCGHSA enrichment
  24. 2026-09-27 22:28 UTCEG score recompute
  25. 2026-09-27 22:28 UTCGHSA enrichment
Show 75 more
  1. 2026-09-27 13:48 UTCEPSS rescore
  2. 2026-09-27 08:21 UTCEG score recompute
  3. 2026-09-27 08:21 UTCGHSA enrichment
  4. 2026-09-26 15:59 UTCEPSS rescore
  5. 2026-09-26 00:28 UTCEPSS rescore
  6. 2026-09-25 05:24 UTCGHSA enrichment
  7. 2026-09-24 16:21 UTCEG score recompute
  8. 2026-09-24 16:21 UTCGHSA enrichment
  9. 2026-09-24 14:04 UTCEPSS rescore
  10. 2026-09-24 01:48 UTCEG score recompute
  11. 2026-09-24 01:48 UTCGHSA enrichment
  12. 2026-09-23 17:54 UTCEPSS rescore
  13. 2026-09-23 12:49 UTCGHSA enrichment
  14. 2026-09-22 23:47 UTCEG score recompute
  15. 2026-09-22 23:47 UTCGHSA enrichment
  16. 2026-09-22 16:01 UTCEPSS rescore
  17. 2026-09-22 10:19 UTCGHSA enrichment
  18. 2026-09-21 21:20 UTCEG score recompute
  19. 2026-09-21 21:20 UTCGHSA enrichment
  20. 2026-09-21 21:09 UTCEPSS rescore
  21. 2026-09-21 08:18 UTCEG score recompute
  22. 2026-09-21 08:18 UTCGHSA enrichment
  23. 2026-09-20 20:16 UTCEPSS rescore
  24. 2026-09-20 18:41 UTCGHSA enrichment
  25. 2026-09-20 05:30 UTCGHSA enrichment
  26. 2026-09-19 16:30 UTCEG score recompute
  27. 2026-09-19 16:30 UTCGHSA enrichment
  28. 2026-09-19 03:26 UTCEG score recompute
  29. 2026-09-19 03:26 UTCGHSA enrichment
  30. 2026-09-18 19:28 UTCEPSS rescore
  31. 2026-09-18 14:27 UTCGHSA enrichment
  32. 2026-09-18 01:13 UTCEG score recompute
  33. 2026-09-18 01:13 UTCGHSA enrichment
  34. 2026-09-17 12:13 UTCGHSA enrichment
  35. 2026-09-16 23:13 UTCEG score recompute
  36. 2026-09-16 23:13 UTCGHSA enrichment
  37. 2026-09-16 14:08 UTCEPSS rescore
  38. 2026-09-16 05:27 UTCEG score recompute
  39. 2026-09-16 05:27 UTCGHSA enrichment
  40. 2026-09-16 05:15 UTCEPSS rescore
  41. 2026-09-15 16:27 UTCEG score recompute
  42. 2026-09-15 16:27 UTCGHSA enrichment
  43. 2026-09-15 03:27 UTCEG score recompute
  44. 2026-09-15 03:27 UTCGHSA enrichment
  45. 2026-09-15 03:12 UTCEPSS rescore
  46. 2026-09-14 14:27 UTCGHSA enrichment
  47. 2026-09-14 01:27 UTCEG score recompute
  48. 2026-09-14 01:27 UTCGHSA enrichment
  49. 2026-09-13 12:28 UTCGHSA enrichment
  50. 2026-09-12 23:28 UTCEG score recompute
  51. 2026-09-12 23:28 UTCGHSA enrichment
  52. 2026-09-12 15:02 UTCEPSS rescore
  53. 2026-09-12 10:28 UTCGHSA enrichment
  54. 2026-09-11 21:29 UTCEG score recompute
  55. 2026-09-11 21:29 UTCGHSA enrichment
  56. 2026-09-11 14:53 UTCEPSS rescore
  57. 2026-09-11 08:29 UTCGHSA enrichment
  58. 2026-09-10 19:29 UTCEG score recompute
  59. 2026-09-10 19:29 UTCGHSA enrichment
  60. 2026-09-10 09:35 UTCEPSS rescore
  61. 2026-09-10 06:18 UTCGHSA enrichment
  62. 2026-09-09 17:18 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 16:12 UTCGHSA enrichment
  68. 2026-09-06 23:09 UTCEG score recompute
  69. 2026-09-06 23:09 UTCGHSA enrichment
  70. 2026-09-06 13:48 UTCEPSS rescore
  71. 2026-09-06 10:06 UTCGHSA enrichment
  72. 2026-09-05 21:06 UTCEG score recompute
  73. 2026-09-05 21:06 UTCGHSA enrichment
  74. 2026-09-05 08:06 UTCGHSA enrichment
  75. 2026-09-04 19:06 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-74783?
CVE-2026-74783 is a high vulnerability published on August 16, 2026. Scriban versions 6.6.0 through 7.2.0 contain a non-enforcing ExpressionDepthLimit guard that fails to stop recursive descent parsing of deeply nested expressions. Attackers can supply templates with deeply nested parentheses, array initializers, object initializers, or unary operators to trigger an…
When was CVE-2026-74783 disclosed?
CVE-2026-74783 was first published on August 16, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74783 actively exploited?
CVE-2026-74783 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (24th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74783?
CVE-2026-74783 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-74783?
A fix for CVE-2026-74783 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74783 are linked in the Vendor Advisories panel on this page.

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