CVE-2026-73060

Scriban versions from 3.0.0 through 7.2.5 contain a denial of service vulnerability in the ScriptRange.Multiply operator that bypasses LoopLimit when the left operand is a lazy sequence. Attackers can supply templates with array multiplication on lazy sequences to execute billions of uncharged iterations, pinning CPU cores and exhausting garbage collection resources even when LoopLimit is set to 1.

CVSS 4.0

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-25)

CWE

CWE-770

Published

2026-08-16

Modified

2026-09-30

Record from

the NVD, synced 2026-10-19

References

• https://github.com/scriban/scriban/commit/205ca6a7c2349d3d388bd5f1f7729ee198c0d5e5
• https://github.com/scriban/scriban/commit/c3f03bfc912e14b306a01a03e611f606b05f9c33
• https://github.com/scriban/scriban/security/advisories/GHSA-89cf-6hmv-8rxm
• https://www.vulncheck.com/advisories/scriban-through-denial-of-service-via-scriptrange-multiply
• https://github.com/scriban/scriban/security/advisories/GHSA-89cf-6hmv-8rxm

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