CVE-2020-24345
** DISPUTED ** JerryScript through 2.3.0 allows stack consumption via function a(){new new Proxy...
JerryScript through 2.3.0 allows stack consumption via function a(){new new Proxy(a,{})}JSON.parse("[]",a). NOTE: the vendor states that the problem is the lack of the --stack-limit option
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
JerryScript through 2.3.0 allows stack consumption via function a(){new new Proxy(a,{})}JSON.parse("[]",a). NOTE: the vendor states that the problem is the lack of the --stack-limit option
- Record
CVE-2020-24345- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
JerryScript through 2.3.0 allows stack consumption via function a(){new new Proxy(a,{})}JSON.parse("[]",a). NOTE: the vendor states that the problem is the lack of the --stack-limit option
- Record
CVE-2020-24345- Updated
- 2026-11-02
EUVDEUVD-2020-17079 No score
JerryScript through 2.3.0 allows stack consumption via function a(){new new Proxy(a,{})}JSON.parse("[]",a). NOTE: the vendor states that the problem is the lack of the --stack-limit option
- Record
EUVD-2020-17079- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-83r4-4f6v-q83c
** DISPUTED ** JerryScript through 2.3.0 allows stack consumption via function a(){new new Proxy...
** DISPUTED ** JerryScript through 2.3.0 allows stack consumption via function a(){new new Proxy(a,{})}JSON.parse("[]",a). NOTE: the vendor states that the problem is the lack of the --stack-limit option.
- Record
GHSA-83r4-4f6v-q83c- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSV
JerryScript through 2.3.0 allows stack consumption via function a(){new new Proxy(a,{})}JSON.parse("[]",a). NOTE: the vendor states that the problem is the lack of the --stack-limit option
- Record
CVE-2020-24345- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-24345 is a high vulnerability (CVSS 7.8) in Jerryscript, published August 13, 2020. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 0.82%, the 57th percentile.