CVE-2022-39266
isolated-vm has vulnerable CachedDataOptions in API
isolated-vm is a library for nodejs which gives the user access to v8's Isolate interface. In versions 4.3.6 and prior, if the untrusted v8 cached data is passed to the API through CachedDataOptions, attackers can bypass the sandbox and run arbitrary code in the nodejs process. Version 4.3.7 changes the documentation to warn users that they should not accept cachedData payloads from a user.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
isolated-vm has vulnerable CachedDataOptions in API
isolated-vm is a library for nodejs which gives the user access to v8's Isolate interface. In versions 4.3.6 and prior, if the untrusted v8 cached data is passed to the API through CachedDataOptions, attackers can bypass the sandbox and run arbitrary code in the nodejs process. Version 4.3.7 changes the documentation to warn users that they should not accept cachedData payloads from a user.
- Record
CVE-2022-39266- CVSS 3.1
- 9.7 Critical
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-693, CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2022-6663
isolated-vm is a library for nodejs which gives the user access to v8's Isolate interface. In versions 4.3.6 and prior, if the untrusted v8 cached data is passed to the API through CachedDataOptions, attackers can bypass the sandbox and run arbitrary code in the nodejs process. Version 4.3.7 changes the documentation to warn users that they should not accept cachedData payloads from a user.
- Record
EUVD-2022-6663- CVSS 3.1
- 9.7 Critical
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-2jjq-x548-rhpv
isolated-vm has vulnerable CachedDataOptions in API
Impact
If the untrusted v8 cached data is passed to the API through CachedDataOptions, the attackers can bypass the sandbox and run arbitrary code in the nodejs process. Version 4.3.7 changes the documentation to warn users that they should not accept cachedData payloads from a user.
- Record
GHSA-2jjq-x548-rhpv- CVSS 3.1
- 9.6 Critical
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-20, CWE-287, CWE-693
- Updated
- 2026-11-02
NVD
isolated-vm is a library for nodejs which gives the user access to v8's Isolate interface. In versions 4.3.6 and prior, if the untrusted v8 cached data is passed to the API through CachedDataOptions, attackers can bypass the sandbox and run arbitrary code in the nodejs process. Version 4.3.7 changes the documentation to warn users that they should not accept cachedData payloads from a user.
- Record
CVE-2022-39266- CVSS 3.1
- 9.6 Critical
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20, CWE-693
- Updated
- 2026-11-02
OSV
isolated-vm has vulnerable CachedDataOptions in API
isolated-vm is a library for nodejs which gives the user access to v8's Isolate interface. In versions 4.3.6 and prior, if the untrusted v8 cached data is passed to the API through CachedDataOptions, attackers can bypass the sandbox and run arbitrary code in the nodejs process. Version 4.3.7 changes the documentation to warn users that they should not accept cachedData payloads from a user.
- Record
CVE-2022-39266- CVSS 3.1
- 9.6 Critical
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-20, CWE-693
- Updated
- 2026-11-02
OSVGHSA-2jjq-x548-rhpv
isolated-vm has vulnerable CachedDataOptions in API
Impact
If the untrusted v8 cached data is passed to the API through CachedDataOptions, the attackers can bypass the sandbox and run arbitrary code in the nodejs process. Version 4.3.7 changes the documentation to warn users that they should not accept cachedData payloads from a user.
- Record
GHSA-2jjq-x548-rhpv- CVSS 3.1
- 9.6 Critical
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-20, CWE-287, CWE-693
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
isolated-vmnpm |
through 4.3.6 | 4.3.7 |
isolated-vmnpm |
before 4.3.7 | 4.3.7 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-39266 is a critical vulnerability (CVSS 9.7) in Isolated-vm Project Isolated-vm, published September 29, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.30%, the 70th percentile. Fixed in isolated-vm 4.3.7.
References
github.com/laverdet/isolated-vm/security/advisories/GHSA-2jjq-x548-rhpv
nvd.nist.gov/vuln/detail/CVE-2022-39266