CVE-2024-9398
Reported by mozilla · Published October 1, 2024
By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application which implements that protocol handler is installed. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
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 | Wolfi | 136.0.2-r0 |
| firefox-esr | Chainguard | 128.3.0-r0 |
| firefox | Chainguard | 136.0.2-r0 |
| firefox | mozilla | 131.0, 131, 128.3.0 |
| firefox_esr | mozilla | 128.3.0 |
| thunderbird | mozilla | 131, 128.3 |
| Firefox ESR | Mozilla | 128.3 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified |
| Mozilla | Firefox ESR | unspecified |
| Mozilla | Thunderbird | unspecified |
| Mozilla | Thunderbird | unspecified |
| Mozilla | Firefox | * |
| wolfi | firefox | 0 |
| chainguard | firefox-esr | 0 |
| Mozilla | Firefox ESR | * |
| chainguard | firefox | 0 |
| Mozilla | Thunderbird | *, * |
Timeline
- Oct 1, 2024 CVE Published
- Oct 1, 2024 PoC Published (3 in total, the first dated here)
- Oct 2, 2024 EPSS Score (30 in total, the first dated here)
- Oct 5, 2024 Coalition ESS Score (17 in total, the first dated here)
- Jun 2, 2026 Security Advisory (34 in total, the first dated here)
- Jun 17, 2026 CVE Updated
- Aug 10, 2026 Distribution Patch (19 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2024-9398
vulnetix vdb fixes CVE-2024-9398
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/CVE-2024-9398/fixes/registry"
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