CVE-2026-74788

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: 0.5%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Scriban before 7.0.0 (affected versions <= 6.6.0) contains an uncontrolled memory allocation vulnerability in the string.pad_left and string.pad_right template functions, which perform no validation on the width parameter before delegating to .NET's String.PadLeft/PadRight. When an application exposes Scriban to untrusted template input, an attacker can supply an arbitrarily large width value (e.g., 500,000,000) to trigger ~1GB memory allocations in a single call, resulting in OutOfMemoryException and denial of service. The TemplateContext.LimitToString limit does not prevent this because it is only enforced after the string has been fully allocated.

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
0.5%
EPSS %ILE
39th
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 Denial of Service via string.pad_left/pad_right | Advisories | VulnCheck

https://www.vulncheck.com/advisories/scriban-before-denial-of-service-via-string-pad-left-pad-right
github Patch Available🟡 PoC Available

Uncontrolled Memory Allocation via string.pad_left/pad_right Allows Remote Denial of Service · Advisory · scriban/scriban · GitHub

https://github.com/scriban/scriban/security/advisories/GHSA-v66j-x4hw-fv9g

Vendor Advisories for CVE-2026-74788(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 / 97× 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 181 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 08:08 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 16:19 UTCGHSA enrichment
  10. 2026-10-02 03:47 UTCEG score recompute
  11. 2026-10-02 03:47 UTCGHSA enrichment
  12. 2026-10-01 19:50 UTCEPSS rescore
  13. 2026-10-01 14:05 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 11:00 UTCGHSA enrichment
  23. 2026-09-27 22:28 UTCEG score recompute
  24. 2026-09-27 22:28 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 10:22 UTCGHSA enrichment
  9. 2026-09-23 21:49 UTCEG score recompute
  10. 2026-09-23 21:49 UTCGHSA enrichment
  11. 2026-09-23 17:54 UTCEPSS rescore
  12. 2026-09-23 09:17 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 04:40 UTCEG score recompute
  17. 2026-09-22 04:40 UTCGHSA enrichment
  18. 2026-09-21 21:09 UTCEPSS rescore
  19. 2026-09-21 16:01 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 14:55 UTCGHSA enrichment
  24. 2026-09-20 00:34 UTCEG score recompute
  25. 2026-09-20 00:34 UTCGHSA enrichment
  26. 2026-09-19 12:01 UTCGHSA enrichment
  27. 2026-09-18 23:13 UTCEG score recompute
  28. 2026-09-18 23:13 UTCGHSA enrichment
  29. 2026-09-18 19:28 UTCEPSS rescore
  30. 2026-09-18 10:42 UTCGHSA enrichment
  31. 2026-09-17 22:02 UTCEG score recompute
  32. 2026-09-17 22:02 UTCGHSA enrichment
  33. 2026-09-17 04:38 UTCGHSA enrichment
  34. 2026-09-16 16:05 UTCEG score recompute
  35. 2026-09-16 16:05 UTCGHSA enrichment
  36. 2026-09-16 14:08 UTCEPSS rescore
  37. 2026-09-16 05:15 UTCEPSS rescore
  38. 2026-09-16 00:55 UTCEG score recompute
  39. 2026-09-16 00:55 UTCGHSA enrichment
  40. 2026-09-15 11:48 UTCEG score recompute
  41. 2026-09-15 11:48 UTCGHSA enrichment
  42. 2026-09-15 03:12 UTCEPSS rescore
  43. 2026-09-14 22:49 UTCGHSA enrichment
  44. 2026-09-14 10:17 UTCGHSA enrichment
  45. 2026-09-13 21:45 UTCEG score recompute
  46. 2026-09-13 21:45 UTCGHSA enrichment
  47. 2026-09-13 09:13 UTCGHSA enrichment
  48. 2026-09-12 20:40 UTCEG score recompute
  49. 2026-09-12 20:40 UTCGHSA enrichment
  50. 2026-09-12 15:02 UTCEPSS rescore
  51. 2026-09-12 08:07 UTCGHSA enrichment
  52. 2026-09-11 19:35 UTCEG score recompute
  53. 2026-09-11 19:35 UTCGHSA enrichment
  54. 2026-09-11 14:53 UTCEPSS rescore
  55. 2026-09-11 07:02 UTCGHSA enrichment
  56. 2026-09-10 18:30 UTCEG score recompute
  57. 2026-09-10 18:29 UTCGHSA enrichment
  58. 2026-09-10 09:35 UTCEPSS rescore
  59. 2026-09-10 05:50 UTCGHSA enrichment
  60. 2026-09-09 17:18 UTCGHSA enrichment
  61. 2026-09-09 03:46 UTCEG score recompute
  62. 2026-09-09 03:46 UTCGHSA enrichment
  63. 2026-09-08 22:01 UTCEPSS rescore
  64. 2026-09-08 06:01 UTCGHSA enrichment
  65. 2026-09-07 17:19 UTCEG score recompute
  66. 2026-09-07 17:19 UTCGHSA enrichment
  67. 2026-09-07 04:47 UTCGHSA enrichment
  68. 2026-09-06 15:45 UTCEG score recompute
  69. 2026-09-06 15:45 UTCGHSA enrichment
  70. 2026-09-06 13:48 UTCEPSS rescore
  71. 2026-09-06 03:12 UTCEG score recompute
  72. 2026-09-06 03:12 UTCGHSA enrichment
  73. 2026-09-05 14:38 UTCGHSA enrichment
  74. 2026-09-05 02:05 UTCEG score recompute
  75. 2026-09-05 02:05 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-74788?
CVE-2026-74788 is a high vulnerability published on August 16, 2026. Scriban before 7.0.0 (affected versions <= 6.6.0) contains an uncontrolled memory allocation vulnerability in the string.padleft and string.padright template functions, which perform no validation on the width parameter before delegating to .NET's String.PadLeft/PadRight. When an application…
When was CVE-2026-74788 disclosed?
CVE-2026-74788 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-2026-74788 actively exploited?
CVE-2026-74788 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74788?
CVE-2026-74788 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-2026-74788?
A fix for CVE-2026-74788 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74788 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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