Content of other messages could be included when replying to a crafted message
CVSS score
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EPSS probability
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Risk score
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Published
3 h ago
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Impact on My Inventory
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
1
Source agreement
Tam uyum
Evidence confidence
%55
Short explanation
When replying to, forwarding, or editing a crafted email message as new, Thunderbird can embed parts of a different message stored in the same folder into the composing message [S0]. If the user sends the message, the other message content is disclosed to recipients [S0]. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6 [S0].
This flaw can lead to sensitive email contents being leaked to unintended recipients without the user's knowledge [S0]. It directly threatens the confidentiality of private communications and corporate data [S0].
What should be done?
- Update Thunderbird according to vendor advisories [S0]
- Inspect suspicious emails before replying or editing [S0]
Chain of evidence and sources
Thunderbird, kurgulanmış bir mesaja yanıt verilirken veya iletilirken aynı klasördeki diğer mesaj parçalarını dahil edebilir.
Bu zafiyet Thunderbird 159 ve Thunderbird 153.6 sürümlerinde giderilmiştir.
Show the technical text from the sources
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.
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-118175 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | mozilla | thunderbird | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| The sources have not yet published a verified CVSS metric. | ||||
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-118175 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-118175 weaknesses.
Official Sources and Advisories
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