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CVE-2026-74954 Information disclosure due to side-channel in the Storage: Cache API component

🗓️ 18 Aug 2026 12:23:37Reported by mozillaType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Side-channel in Firefox Cache API leaks data; fixed in Firefox 154 and ESR 153.1.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-74954
18 Aug 202612:23
cve
euvd
EUVD
EUVD-2026-60681
18 Aug 202612:23
euvd
nvd
NVD
CVE-2026-74954
18 Aug 202613:17
nvd
ptsecurity
Positive Technologies
PT-2026-76987
18 Aug 202600:00
ptsecurity
[
  {
    "product": "Firefox",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "153.1",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "154",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  },
  {
    "product": "Thunderbird",
    "vendor": "Mozilla",
    "versions": [
      {
        "status": "unaffected",
        "version": "153.1",
        "lessThanOrEqual": "153.*",
        "versionType": "rpm"
      },
      {
        "status": "unaffected",
        "version": "154",
        "lessThanOrEqual": "*",
        "versionType": "rpm"
      }
    ]
  }
]

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