CVE-2026-73062Public exploitNetwork attack vector

Service interrupt via unchecked array multiplication

Published Aug 16, 2026 · Updated Aug 16, 2026

Denial of service in Scriban 3.0.0 through 7.2.0 allows remote attackers to interrupt template-processing services via array multiplication. ScriptArray.TryEvaluate sizes a new array with unchecked intModifier * array.Count arithmetic, then fills it without LoopLimit or LimitToString enforcement. Exposure requires evaluation of wholly or partly attacker-controlled templates; a small input can force multi-gigabyte allocations, causing request failure or host termination under memory pressure.

CVSS severity8.7
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Scriban 3.0.0 through 7.2.0 allows remote attackers to interrupt template-processing services via array multiplication. ScriptArray.TryEvaluate sizes a new array with unchecked intModifier * array.Count arithmetic, then fills it without LoopLimit or LimitToString enforcement. Exposure requires evaluation of wholly or partly attacker-controlled templates; a small input can force multi-gigabyte allocations, causing request failure or host termination under memory pressure.

The record

CVE
CVE-2026-73062
Published
Aug 16, 2026
Updated
Aug 16, 2026
Vendor
Scriban
Product
Scriban
Classifications
CWE-770, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Scriban · ScribanAffected versions are unavailable in this record.

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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