CVE-2026-84137
EUVD-2026-6908501.09.2026, 13:20
Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| mozilla | firefox | 𝑥 < 153.2.0 |
| mozilla | thunderbird | 𝑥 < 153.2.0 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| mozilla | firefox | 154.0.0 ≤ 𝑥 < 155.0.0 | CNA |
| mozilla | firefox_esr | 141.0.0 ≤ 𝑥 < 153.2.0 | CNA |
| mozilla | thunderbird | 154.0 ≤ 𝑥 < 155.0 | CNA |
| mozilla | thunderbird_esr | 141.0.0 ≤ 𝑥 < 153.2.0 | CNA |
Ubuntu Releases
Ubuntu Product | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| firefox |
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| thunderbird |
| ||||||||||
| mozjs38 |
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| mozjs52 |
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| mozjs68 |
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| mozjs78 |
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| mozjs91 |
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| mozjs102 |
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| mozjs115 |
|
openSUSE / SLES Releases
openSUSE Product | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MozillaFirefox |
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| MozillaFirefox-branding-SLE-153 |
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| MozillaFirefox-devel |
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| MozillaFirefox-translations-common |
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| MozillaFirefox-translations-other |
|
Amazon Linux Releases
Common Weakness Enumeration
- CWE-346 - Origin Validation ErrorThe software does not properly verify that the source of data or communication is valid.
- CWE-451 - User Interface (UI) Misrepresentation of Critical InformationThe user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.