A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 152.3.
CVE-2026-13356
NONECVSS 0.0Trending — 3 sources updated this week
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: —CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- —
- KEV
- Not listed
Published
July 6, 2026
Last Modified
July 7, 2026
References (2)
- security@mozillahttps://bugzilla.mozilla.org/show_bug.cgi?id=2047768
- security@mozillahttps://www.mozilla.org/security/advisories/mfsa2026-65/
Vendor Advisories for CVE-2026-13356(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Data Freshness Timeline
(refreshed 3× in last 7d / 3× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 01:52 UTCNVD update
- 2026-07-06 23:36 UTCEG score recompute
- 2026-07-06 23:35 UTCMITRE cvelistV5first tracked
Frequently asked(3)
What is CVE-2026-13356?
CVE-2026-13356 is a none vulnerability published on July 6, 2026. A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 152.3.
When was CVE-2026-13356 disclosed?
CVE-2026-13356 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
How do I remediate CVE-2026-13356?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13356, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-13356
Is Your Infrastructure Affected by CVE-2026-13356?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.