Is there a public exploit for CVE-2026-73089?

No public exploit for CVE-2026-73089 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-73089?

CVE-2026-73089 scores CVSS 7.5 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.66%.

What does CVE-2026-73089 affect?

CVE-2026-73089 affects browserslist browserslist.

7.5 High

Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools.

CVE-2026-73089

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 - - queries, to bypass the caller-controlled BROWSERSLISTDISABLECACHE mitigation and cause linear memory growth followed by an out-of-memory process crash. This issue is fixed in version 4.28.7.

Assessment

CVSS: 7.5 (v3.1)
Severity: High
EPSS: 0.66% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 11 August 2026
Last updated: 13 August 2026
Affected: browserslist · browserslist
Assigner: GitHub_M

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

At the source

EUVD (ENISA)

References

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