CVE-2022-22760
First published: Tue Feb 08 2022(Updated: )
When importing resources using Web Workers, error messages would distinguish the difference between <code>application/javascript</code> responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox ESR | <91.6 | 91.6 |
| <97 | 97 | |
| <91.6 | 91.6 | |
| <91.6 | 91.6 | |
| Mozilla Firefox | <97.0 | |
| Mozilla Firefox ESR | <91.6 | |
| Mozilla Thunderbird | <91.6 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1740985
- https://bugzilla.mozilla.org/show_bug.cgi?id=1748503
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-05/
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-04/
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-06/
- https://www.mozilla.org/security/advisories/mfsa2022-04/
- https://www.mozilla.org/security/advisories/mfsa2022-05/
- https://www.mozilla.org/security/advisories/mfsa2022-06/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2022-22760?
CVE-2022-22760 is a vulnerability that affected Mozilla Firefox, Firefox ESR, and Thunderbird versions up to 91.6.
How does CVE-2022-22760 impact web workers?
CVE-2022-22760 allowed error messages when importing resources using web workers to distinguish between application/javascript responses and non-script responses, potentially leaking cross-origin information.
Which software versions are affected by CVE-2022-22760?
CVE-2022-22760 affected Mozilla Firefox versions up to 97, Firefox ESR versions up to 91.6, and Thunderbird versions up to 91.6.
What is the severity of CVE-2022-22760?
CVE-2022-22760 has a severity level of medium with a CVSS score of 4.
How can I fix CVE-2022-22760?
To fix CVE-2022-22760, update your Mozilla Firefox, Firefox ESR, or Thunderbird to version 91.6 (for Firefox ESR) or 97 (for Firefox).
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