CVE-2026-74794 json
Scriban before 6.6.0 Denial of Service via Infinite Recursion
published 2026-03-19 7 mo ago modified 2026-08-31 2 mo ago also GHSA-grr9-747v-xvcp , EUVD-2026-59959
- cvss
- 7.5
- 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 42%
- public exploits
- 0
- none known
Summary
Scriban before 6.6.0 contains an infinite recursion vulnerability in object rendering when the ObjectRecursionLimit property defaults to unlimited. Attackers can supply circular reference objects to the template context, exhausting stack space and triggering an uncatchable StackOverflowException that terminates the hosting process.
Patch / fix
- nuget scriban 6.6.0
- nuget Scriban.Signed 6.6.0
- scriban scriban 6.6.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/scriban/scriban/security/advisories/GHSA-grr9-747v-xvcp referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | 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 |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 8.7 | 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/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 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | scriban | <6.6.0 |
6.6.0 |
| nuget | Scriban.Signed | <6.6.0 |
6.6.0 |
Affected products
- scriban scriban
Classification
- Weakness
-
- CWE-674 Uncontrolled Recursion
References
-
github.com
/scriban/scriban/commit/a6fe6074199e5c04f4d29dc8d8e652b24d33e3e4
web
-
github.com
/scriban/scriban/security/advisories/GHSA-grr9-747v-xvcp
vendor-advisory, exploit, web
-
vulncheck.com
/advisories/scriban-before-denial-of-service-via-infinite-recursion
third-party-advisory
-
github.com
/scriban/scriban
package
Sources
- CVE List CVE-2026-74794
- GitHub Advisory GHSA-grr9-747v-xvcp
- NVD CVE-2026-74794
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