Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
CVE-2026-57989
Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-07-26. a secondary CVSS source baseline 7.4; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.4
- EG Score
- 7.4(high)
- EG Risk
- 38(Track)EG Risk 38/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity74% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
July 26, 2026
Last Modified
July 26, 2026
Advisory Details (1)
Auto-updated Jul 26, 2026Security Update Guide - Microsoft Security Response Center
Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57989Vendor Advisories for CVE-2026-57989(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× 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.
- 2026-07-27 07:08 UTCEG score recompute
- 2026-07-27 07:08 UTCVendor advisory
- 2026-07-27 07:08 UTCGHSA enrichment
- 2026-07-26 18:22 UTCEG score recompute
- 2026-07-26 18:22 UTCVendor advisory
- 2026-07-26 17:46 UTCEG score recompute
- 2026-07-26 17:46 UTCVendor advisory
- 2026-07-26 17:44 UTCMITRE cvelistV5first tracked
Related CVEs(same vendor + same CWE)
Same vendor
10 shownmsrc
Same CWE
10 shownCWE-346
Frequently asked(4)
What is CVE-2026-57989?
When was CVE-2026-57989 disclosed?
What is the CVSS score of CVE-2026-57989?
How do I remediate CVE-2026-57989?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-57989
Is Your Infrastructure Affected by CVE-2026-57989?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.