Scriban 3.0.0 through 7.2.5 Denial of Service via ScriptRange.Multiply
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.4%
exploitation probability
0.4%top 69% of all CVEs
observed exploitation
nono source reports it
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/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
scriban · scribanReferences
https://github.com/scriban/scriban/commit/205ca6a7c2349d3d388bd5f1f7729ee198c0d5e5https://github.com/scriban/scriban/commit/c3f03bfc912e14b306a01a03e611f606b05f9c33https://github.com/scriban/scriban/security/advisories/GHSA-89cf-6hmv-8rxmhttps://www.vulncheck.com/advisories/scriban-through-denial-of-service-via-scriptrange-multiply