The package browserslist from 4.0.0 and before 4.16.5 are vulnerable to Regular Expression Denial of Service (ReDoS) during parsing of queries.
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Browserslist | Browserslist_project | 4.0.0 (including) | 4.16.5 (excluding) |
| Red Hat Advanced Cluster Management for Kubernetes 2.3 for RHEL 8 | RedHat | rhacm2/kui-web-terminal-rhel8:v2.3.0-51 | * |
| Red Hat Advanced Cluster Management for Kubernetes 2.3 for RHEL 8 | RedHat | rhacm2/search-api-rhel8:v2.3.0-46 | * |
| Red Hat Quay 3 | RedHat | quay/quay-rhel8:v3.6.0-62 | * |
| Node-browserslist | Ubuntu | bionic | * |
| Node-browserslist | Ubuntu | groovy | * |
| Node-browserslist | Ubuntu | hirsute | * |
| Node-browserslist | Ubuntu | impish | * |
| Node-browserslist | Ubuntu | kinetic | * |
| Node-browserslist | Ubuntu | trusty | * |
| Node-browserslist | Ubuntu | upstream | * |
Attackers can create crafted inputs that
intentionally cause the regular expression to use
excessive backtracking in a way that causes the CPU
consumption to spike.