CVE-2026-92044 (GCVE-0-2026-92044)
Vulnerability from cvelistv5 – Published: 2026-09-15 12:34 – Updated: 2026-09-16 14:24
VLAI
EPSS
VEX
Title
Information disclosure in the Networking: HTTP component
Summary
Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
153.3 , ≤ 153.*
(rpm)
Unaffected: 156 , ≤ * (rpm) |
guessed | |
| Mozilla | Thunderbird |
Unaffected:
153.3 , ≤ 153.*
(rpm)
Unaffected: 156 , ≤ * (rpm) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.3",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "156",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.3",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "156",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Gee-netics"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3."
}
],
"value": "Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-16T14:24:38.504Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2051466"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-90/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-93/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-94/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-96/"
}
],
"title": "Information disclosure in the Networking: HTTP component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-92044",
"datePublished": "2026-09-15T12:34:05.330Z",
"dateReserved": "2026-09-15T12:34:04.846Z",
"dateUpdated": "2026-09-16T14:24:38.504Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-92044",
"date": "2026-09-18",
"epss": "0.00152",
"percentile": "0.04727"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.3",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "156",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "153.*",
"status": "unaffected",
"version": "153.3",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "156",
"versionType": "rpm"
}
]
}
],
"source": "security@mozilla.org"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3."
}
],
"id": "CVE-2026-92044",
"lastModified": "2026-09-16T19:34:05.910",
"metrics": {},
"published": "2026-09-15T13:16:55.860",
"references": [
{
"source": "security@mozilla.org",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2051466"
},
{
"source": "security@mozilla.org",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-90/"
},
{
"source": "security@mozilla.org",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-93/"
},
{
"source": "security@mozilla.org",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-94/"
},
{
"source": "security@mozilla.org",
"url": "https://www.mozilla.org/security/advisories/mfsa2026-96/"
}
],
"sourceIdentifier": "security@mozilla.org",
"vulnStatus": "Awaiting Analysis"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-09-17T16:46:26+00:00",
"cve": "CVE-2026-92044",
"id": "CVE-2026-92044",
"initial_release_date": "2026-09-15T12:34:05.330000+00:00",
"product_status:known_not_affected": "23",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "firefox: thunderbird: Information disclosure in the Networking: HTTP component",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92044.json",
"version": "3"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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