Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox | affected |
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Project Subscriptions
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Advisories
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Fixes
Solution
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Workaround
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References
History
Tue, 29 Sep 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Same-origin policy bypass in the DevTools component. This vulnerability was fixed in Firefox ESR 153.4 and Firefox 157. | |
| Title | Same-origin policy bypass in the DevTools component | |
| References |
|
Projects
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MITRE
Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2026-09-29T12:36:23.516Z
Reserved: 2026-09-26T19:18:06.677Z
Link: CVE-2026-100809
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-09-29T13:17:46.023
Modified: 2026-09-29T13:17:46.023
Link: CVE-2026-100809
Redhat
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OpenCVE Enrichment
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Weaknesses
No weakness.