CVE-2026-4256

HIGHPre-NVD 8.28.2—
EchelonGraph scoreHIGH confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-07-09. a secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.2Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in PEAKUP Technology Inc. PassGate allows LDAP Injection.

This issue affects PassGate: through 30042026.

CVSS v3
8.2
EG Score
8.2(high)
EPSS
11.6%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 9, 2026

Advisory Details (1)

Auto-updated Jul 9, 2026
No patch confirmed yet.
generic

T.C. Siber Güvenlik Başkanlığı

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0523

Vendor Advisories for CVE-2026-4256(1)

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 13× in last 7d / 13× 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.

  1. 2026-07-11 21:41 UTCEG score recompute
  2. 2026-07-11 21:41 UTCGHSA enrichment
  3. 2026-07-11 10:28 UTCEG score recompute
  4. 2026-07-11 10:28 UTCGHSA enrichment
  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-10 23:16 UTCEG score recompute
  7. 2026-07-10 23:15 UTCGHSA enrichment
  8. 2026-07-10 12:02 UTCEG score recompute
  9. 2026-07-10 12:02 UTCGHSA enrichment
  10. 2026-07-10 00:48 UTCEG score recompute
  11. 2026-07-10 00:48 UTCGHSA enrichment
  12. 2026-07-09 13:32 UTCEG score recompute
  13. 2026-07-09 13:30 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-4256?
CVE-2026-4256 is a high vulnerability published on July 9, 2026. Improper neutralization of special elements used in an LDAP query ('LDAP injection') vulnerability in PEAKUP Technology Inc. PassGate allows LDAP Injection. This issue affects PassGate: through 30042026.
When was CVE-2026-4256 disclosed?
CVE-2026-4256 was first published in the National Vulnerability Database on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4256 actively exploited?
CVE-2026-4256 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4256?
CVE-2026-4256 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-4256?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4256, 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-2026-4256

Explore →

Is Your Infrastructure Affected by CVE-2026-4256?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs