CVE-2020-26955: Medium severity firefox vulnerability

Published Nov 17, 2020
·
Updated

When a user downloaded a file in Firefox for Android, if a cookie is set, it would have been re-sent during a subsequent file download operation on the same domain, regardless of whether the original and subsequent request were in private and non-private browsing modes. Note: This issue only affected Firefox for Android. Other operating systems are unaffected.. This vulnerability affects Firefox < 83.

Other sources

When a user downloaded a file in Firefox for Android, if a cookie is set, it would have been re-sent during a subsequent file download operation on the same domain, regardless of whether the original and subsequent request were in private and non-private browsing modes.Note: This issue only affected Firefox for Android. Other operating systems are unaffected.

Affected Software

2 affected componentsFixes available
Mozilla Firefox<83
83
Mozilla Firefox Android<83.0

Event History

Nov 17, 2020
CVE Published
12:00 AM
Dec 9, 2020
CVE Published
via MITRE·12:21 AM
Data Sourced
via MITRE·12:21 AM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2020-26955?

CVE-2020-26955 is a vulnerability in Firefox for Android that allows a re-sending of cookies during subsequent file download operations on the same domain, regardless of browsing mode.

2

How does CVE-2020-26955 affect Firefox for Android?

CVE-2020-26955 affects Firefox for Android by allowing cookies to be re-sent during subsequent file downloads on the same domain.

3

What is the severity of CVE-2020-26955?

The severity of CVE-2020-26955 is medium with a CVSS score of 6.5.

4

How can I fix the CVE-2020-26955 vulnerability in Firefox for Android?

To fix the CVE-2020-26955 vulnerability in Firefox for Android, update to version 83 or higher.

5

Where can I find more information about CVE-2020-26955?

For more information about CVE-2020-26955, you can refer to the following references: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1663261), [Mozilla Security Advisories](https://www.mozilla.org/en-US/security/advisories/mfsa2020-50/)

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