CVE-2026-74785 json
Scriban before 7.0.0 Denial of Service via Unbounded Resource Consumption
published 2026-03-24 7 mo ago modified 2026-08-31 2 mo ago also GHSA-xw6w-9jjh-p9cr , EUVD-2026-59951
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 41%
- public exploits
- 0
- none known
Summary
Scriban before 7.0.0 contains three distinct denial-of-service vulnerabilities in expression evaluation that bypass existing safety controls through unbounded string multiplication, uncontrolled BigInteger shift operations, and LoopLimit bypass via range enumeration in builtin functions. Attackers who can supply templates can cause out-of-memory exceptions or CPU exhaustion, typically terminating the entire host process.
Patch / fix
- nuget Scriban 7.0.0
- nuget Scriban.Signed 7.0.0
- scriban scriban 7.0.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/scriban/scriban/security/advisories/GHSA-xw6w-9jjh-p9cr referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | Scriban | <7.0.0 |
7.0.0 |
| nuget | Scriban.Signed | <7.0.0 |
7.0.0 |
Affected products
- scriban scriban
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/scriban/scriban/security/advisories/GHSA-xw6w-9jjh-p9cr
vendor-advisory, exploit, web
-
vulncheck.com
/advisories/scriban-before-denial-of-service-via-unbounded-resource-consumption
third-party-advisory
-
github.com
/scriban/scriban
package
Sources
- CVE List CVE-2026-74785
- GitHub Advisory GHSA-xw6w-9jjh-p9cr
- NVD CVE-2026-74785
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