๐Ÿ” CVE Alert

CVE-2026-74786

MEDIUM 6.5

Scriban before 7.0.0 Denial of Service via Unbounded Template Output

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-770
Vendor scriban
Product scriban
Published Aug 16, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected Versions

scriban / scriban
0 < 7.0.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/scriban/scriban/security/advisories/GHSA-m2p3-hwv5-xpqw vulncheck.com: https://www.vulncheck.com/advisories/scriban-before-denial-of-service-via-unbounded-template-output

Credits

๐Ÿ” offset