CVE-2021-40660
Regular expression denial of service in Delight Nashorn Sandbox
An issue was discovered in Delight Nashorn Sandbox 0.2.0. There is an ReDoS vulnerability that can be exploited to launching a denial of service (DoS) attack.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in Delight Nashorn Sandbox 0.2.0. There is an ReDoS vulnerability that can be exploited to launching a denial of service (DoS) attack.
- Record
CVE-2021-40660- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-1333
- Updated
- 2026-11-02
CVE List No score
An issue was discovered in Delight Nashorn Sandbox 0.2.0. There is an ReDoS vulnerability that can be exploited to launching a denial of service (DoS) attack.
- Record
CVE-2021-40660- Updated
- 2026-11-02
EUVDEUVD-2022-5900 No score
An issue was discovered in Delight Nashorn Sandbox 0.2.0. There is an ReDoS vulnerability that can be exploited to launching a denial of service (DoS) attack.
- Record
EUVD-2022-5900- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-38j3-6fm8-pfgc
Regular expression denial of service in Delight Nashorn Sandbox
An issue was discovered in Delight Nashorn Sandbox. There is an ReDoS vulnerability that can be exploited to launching a denial of service (DoS) attack.
- Record
GHSA-38j3-6fm8-pfgc- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-1333
- Updated
- 2026-11-02
OSV
An issue was discovered in Delight Nashorn Sandbox 0.2.0. There is an ReDoS vulnerability that can be exploited to launching a denial of service (DoS) attack.
- Record
CVE-2021-40660- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVGHSA-38j3-6fm8-pfgc
Regular expression denial of service in Delight Nashorn Sandbox
An issue was discovered in Delight Nashorn Sandbox. There is an ReDoS vulnerability that can be exploited to launching a denial of service (DoS) attack.
- Record
GHSA-38j3-6fm8-pfgc- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-1333
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.javadelight:delight-nashorn-sandboxMaven |
before 0.3.1 | 0.3.1 |
org.javadelight:delight-nashorn-sandboxMaven |
before 0.3.1, plus listed versions 0.0.100.0.110.0.120.0.80.0.9 Show 37 moreShow less0.1.00.1.10.1.100.1.110.1.120.1.130.1.140.1.150.1.160.1.170.1.180.1.190.1.20.1.200.1.210.1.220.1.230.1.240.1.250.1.260.1.270.1.280.1.30.1.300.1.310.1.40.1.50.1.60.1.70.1.80.1.90.2.00.2.10.2.30.2.40.2.50.3.0 |
0.3.1 |
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-2021-40660 is a high vulnerability (CVSS 7.5) in Javadelight Nashorn Sandbox, published June 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.04%, the 64th percentile. Fixed in org.javadelight:delight-nashorn-sandbox 0.3.1.
References
github.com/javadelight/delight-nashorn-sandbox/issues/117
nvd.nist.gov/vuln/detail/CVE-2021-40660