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CVE-2026-73089

Browserslist: Unbounded memory growth (no cache eviction) via distinct query results, leading to eventual OOM PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
browserslist / browserslistaffected < 4.28.7

CWE

CWE-770

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.