GHSA-cw2j-6pvw-7g9v

GHSA-cw2j-6pvw-7g9v PUBLISHED CVSS 10 CRITICAL

Record from GitHub Advisory Database · Published January 13, 2026

Sandbox escape in the Messaging System component. This vulnerability affects Firefox < 147.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
firefox	Chainguard	147-r0
firefox	Wolfi	147-r0

Risk scores

CVSS 3.1

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

Affected products

Vendor	Product	Versions
chainguard	firefox	0
wolfi	firefox	0

Timeline

Jan 13, 2026 CVE Published
Apr 10, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-cw2j-6pvw-7g9v
vulnetix vdb fixes GHSA-cw2j-6pvw-7g9v

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-cw2j-6pvw-7g9v/fixes/registry"

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References

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