CVE-2021-23406
Remote Code Execution (RCE)
CRITICAL 9.8EPSS 2.9%
This affects the package pac-resolver before 5.0.0. This can occur when used with untrusted input, due to unsafe PAC file handling. **NOTE:** The fix for this vulnerability is applied in the node-degenerator library, a dependency written by the same maintainer.
- Affected
- pac-resolver
- CVSS v3.1 NVD
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 SNYK
- 8.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P - EPSS
- 2.94% chance of exploitation in the next 30 days, 87th percentile
- Published
- 2021-08-24
- Updated
- 2024-09-17
Proof-of-concept exploits (2)
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1568506
- https://snyk.io/vuln/SNYK-JS-PACRESOLVER-1564857
Security advisories
- TooTallNate/node-degenerator/commit/9d25bb67d957bc2e5425fea7bf7a58b3fc64ff9e
- TooTallNate/node-pac-resolver/releases/tag/5.0.0
- advisories/GHSA-9j49-mfvp-vmhm