CVE-2026-74786

Scriban before 7.0.0 (affected versions <= 6.6.0) contains a denial-of-service vulnerability in which the LimitToString safety limit (default 1MB) can be bypassed because ObjectToString resets the per-call length counter (_currentToStringLength) on every top-level call and StringBuilderOutput enforces no cumulative output-size limit. An attacker who can supply a template can render a near-limit string repeatedly in a loop, allocating approximately 1GB of memory and causing an out-of-memory condition that crashes the host application.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/scriban/scriban/security/advisories/GHSA-m2p3-hwv5-xpqw
https://www.vulncheck.com/advisories/scriban-before-denial-of-service-via-unbounded-template-output
https://github.com/scriban/scriban/security/advisories/GHSA-m2p3-hwv5-xpqw

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-16 14:16

Updated : 2026-08-31 20:30

NVD link : CVE-2026-74786

Mitre link : CVE-2026-74786

CVE.ORG link : CVE-2026-74786

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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