VulnSocial

CVE-2026-8948Patch(mozilla / firefox)

LOWCVSS 9.1 · CRITICAL

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch mozilla firefox systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.

mozilla CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-942CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • firefox
  • thunderbird

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • 2 total mentions across 1 day

Affected systems

Vendors
mozilla
Products
firefoxthunderbird

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-19: 2Patch / Workaround · 2026-05-19: 2Technical Details · 2026-05-19: 205-19
Signal classification1 categories
Patch
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Patch

    🚨*CVE* CVE-2026-8948 Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. https://www.cve.org/CVERecord?id=CVE-2026-8948 ----- Traducción: CVE-2026-8948 Incorporación de políticas de mismo origen en el … http://infoflow.cloud`

    Post summary

    The post highlights that CVE‑2026‑8948, a same‑origin policy bypass affecting the DOM networking component, has been patched in Firefox 151 and Thunderbird 151.

    0000047
    78 followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-8948 Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151 and Thunderbird 151. https://www.cve.org/CVERecord?id=CVE-2026-8948

    Post summary

    The post reports on CVE‑2026‑8948, a same-origin policy bypass, noting that it has been patched in Firefox 151 and Thunderbird 151, with a CVE link for further details.

    00000192
    57.5K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appmozillafirefox---
Appmozillathunderbird---

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