CVE-2026-118175

Content of other messages could be included when replying to a crafted message

State
Published
Severity
Not scored
Published
Oct 27, 2026
Updated
Oct 27, 2026
Reserved
Oct 27, 2026

Read the record on cve.org

Description

When replying to, forwarding, or editing a crafted email message as new, Thunderbird could embed parts of a different message stored in the same folder into the message being composed, without showing a blocked content warning. If the user sent the message, the content of the other message was disclosed to the recipients. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
ThunderbirdMozilla
  • 153.6 through 153.*Not affected
  • 159 and laterNot affected

References

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