high7.5
CVE-2026-73089
Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools.
Impact
Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, index.js retains every distinct `(queries, context)` result in cache and every parseQueries() AST in parseCache without a size cap, TTL, or eviction, allowing an attacker who can influence repeated browserslist() query values, including valid since `<year>-<month>-<day>` queries, to bypass the caller-controlled BROWSERSLIST_DISABLE_CACHE mitigation and cause linear memory growth followed by an out-of-memory process crash. This issue is fixed in version 4.28.7.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | browserslist | <= 4.28.6 | 4.28.7 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-c83g-rgw3-j3cx
- https://github.com/browserslist/browserslist/security/advisories/GHSA-c83g-rgw3-j3cx
- https://nvd.nist.gov/vuln/detail/CVE-2026-73089
- https://github.com/browserslist/browserslist/commit/f2931a3ff2a3a31abf84ef01a7400b270aad6405
- https://github.com/browserslist/browserslist/releases/tag/4.28.7