GHSA-rf6g-cf9f-g4v7

GHSA-rf6g-cf9f-g4v7 PUBLISHED CVSS 6.099999904632568 MEDIUM

Record from GitHub Advisory Database · Published October 14, 2025

A malicious page could have used the type attribute of an OBJECT tag to override the default browser behavior when encountering a web resource served without a content-type. This could have contributed to an XSS on a site that unsafely serves files without a content-type header. This vulnerability affects Firefox < 144, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4.

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-esr	Chainguard	140.4-r0
firefox	Wolfi	140.4-r0
firefox	Chainguard	140.4-r0

Risk scores

CVSS 3.1

6.099999904632568

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

Affected products

Vendor	Product	Versions
chainguard	firefox-esr	0
wolfi	firefox	0
chainguard	firefox	0

Timeline

Oct 14, 2025 CVE Published
May 1, 2026 Security Advisory

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-rf6g-cf9f-g4v7
vulnetix vdb fixes GHSA-rf6g-cf9f-g4v7

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-rf6g-cf9f-g4v7/fixes/registry"

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References

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