VulnerabilityModified
CVE-2021-23406
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.
CRITICAL 9.8EPSS 2.86%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.86% probability · 86th percentile
- CISA KEV
- Not listed
- Affected
- pac-resolver project/pac-resolver
- Source
- report@snyk.io
References
- https://github.com/TooTallNate/node-degenerator/commit/9d25bb67d957bc2e5425fea7bf7a58b3fc64ff9ePatch, Third Party Advisory
- https://github.com/TooTallNate/node-degenerator/commit/ccc3445354135398b6eb1a04c7d27c13b833f2d5Patch, Third Party Advisory
- https://github.com/TooTallNate/node-pac-resolver/releases/tag/5.0.0Patch, Release Notes, Third Party Advisory
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1568506Exploit, Patch, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-PACRESOLVER-1564857Exploit, Patch, Third Party Advisory
- https://github.com/TooTallNate/node-degenerator/commit/9d25bb67d957bc2e5425fea7bf7a58b3fc64ff9ePatch, Third Party Advisory
- https://github.com/TooTallNate/node-degenerator/commit/ccc3445354135398b6eb1a04c7d27c13b833f2d5Patch, Third Party Advisory
- https://github.com/TooTallNate/node-pac-resolver/releases/tag/5.0.0Patch, Release Notes, Third Party Advisory
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1568506Exploit, Patch, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-PACRESOLVER-1564857Exploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.