CVE-2026-96869
published 2026-09-29CVE-2026-96869: Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4…
PriorityP418medium4.3CVSS 3.1
AVNACLPRNUIRSUCLINAN
EPSS
0.20%
8.7th percentile
Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 157 | Firefox 157 |
| mozilla | firefox | < 140.17.0 | 140.17.0 |
| mozilla | firefox | >= 141.0 < 153.4.0 | 153.4.0 |
| mozilla | firefox | >= 154.0.0 < 157.0.0 | 157.0.0 |
| mozilla | firefox_esr | < Firefox ESR 140.17 | Firefox ESR 140.17 |
| mozilla | firefox_esr | < Firefox ESR 153.4 | Firefox ESR 153.4 |
| mozilla | thunderbird | < Thunderbird 153.4 | Thunderbird 153.4 |
| mozilla | thunderbird | < Thunderbird 157 | Thunderbird 157 |
| mozilla | thunderbird | < Thunderbird 140.17 | Thunderbird 140.17 |
| mozilla | thunderbird | < 140.17.0 | 140.17.0 |
| mozilla | thunderbird | >= 141.0 < 153.4.0 | 153.4.0 |
| mozilla | thunderbird | >= 154.0 < 157.0 | 157.0 |
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Mozilla
Mozilla Foundation Security Advisory 2026-99: CVE-2026-96869
vendor_mozilla·CVSS 4.3
CVE-2026-96869 [MEDIUM] Mozilla Foundation Security Advisory 2026-99: CVE-2026-96869
Mozilla Foundation Security Advisory 2026-99
CVE: CVE-2026-96869
Product: Firefox ESR
Impact: moderate
Fixed in: Firefox ESR 140.17
Mozilla
Mozilla Foundation Security Advisory 2026-103: CVE-2026-96869
vendor_mozilla·CVSS 4.3
CVE-2026-96869 [MEDIUM] Mozilla Foundation Security Advisory 2026-103: CVE-2026-96869
Mozilla Foundation Security Advisory 2026-103
CVE: CVE-2026-96869
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 153.4
Mozilla
Mozilla Foundation Security Advisory 2026-100: CVE-2026-96869
vendor_mozilla·CVSS 4.3
CVE-2026-96869 [MEDIUM] Mozilla Foundation Security Advisory 2026-100: CVE-2026-96869
Mozilla Foundation Security Advisory 2026-100
CVE: CVE-2026-96869
Product: Firefox ESR
Impact: low
Fixed in: Firefox ESR 153.4
Mozilla
Mozilla Foundation Security Advisory 2026-97: CVE-2026-96869
vendor_mozilla·CVSS 4.3
CVE-2026-96869 [MEDIUM] Mozilla Foundation Security Advisory 2026-97: CVE-2026-96869
Mozilla Foundation Security Advisory 2026-97
CVE: CVE-2026-96869
Product: Firefox
Impact: low
Fixed in: Firefox 157
Mozilla
Mozilla Foundation Security Advisory 2026-101: CVE-2026-96869
vendor_mozilla·CVSS 4.3
CVE-2026-96869 [MEDIUM] Mozilla Foundation Security Advisory 2026-101: CVE-2026-96869
Mozilla Foundation Security Advisory 2026-101
CVE: CVE-2026-96869
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 157
Mozilla
Mozilla Foundation Security Advisory 2026-102: CVE-2026-96869
vendor_mozilla·CVSS 4.3
CVE-2026-96869 [MEDIUM] Mozilla Foundation Security Advisory 2026-102: CVE-2026-96869
Mozilla Foundation Security Advisory 2026-102
CVE: CVE-2026-96869
Product: Thunderbird
Impact: moderate
Fixed in: Thunderbird 140.17
GHSA
Information disclosure in the Networking component.
ghsa_unreviewed·2026-09-29
CVE-2026-96869 [MEDIUM] CWE-200 Information disclosure in the Networking component.
Information disclosure in the Networking component. This vulnerability was fixed in Firefox ESR 153.4, Firefox 157, and Firefox ESR 140.17.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=2041248https://www.mozilla.org/security/advisories/mfsa2026-100/https://www.mozilla.org/security/advisories/mfsa2026-101/https://www.mozilla.org/security/advisories/mfsa2026-102/https://www.mozilla.org/security/advisories/mfsa2026-103/https://www.mozilla.org/security/advisories/mfsa2026-97/https://www.mozilla.org/security/advisories/mfsa2026-99/
2026-09-29
Published