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 — 3 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 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)
EG Risk
52(Track)
EG Risk 52/100SSVC: 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 computed
Severity82% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
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 12× in last 7d / 43× 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. 2026-07-26 23:36 UTCEG score recompute
  2. 2026-07-26 23:36 UTCGHSA enrichment
  3. 2026-07-26 14:54 UTCEPSS rescore
  4. 2026-07-26 12:20 UTCEG score recompute
  5. 2026-07-26 12:20 UTCGHSA enrichment
  6. 2026-07-25 14:18 UTCEPSS rescore
  7. 2026-07-24 14:18 UTCEPSS rescore
  8. 2026-07-23 14:18 UTCEPSS rescore
  9. 2026-07-23 03:11 UTCEG score recompute
  10. 2026-07-22 14:08 UTCEPSS rescore
  11. 2026-07-21 15:25 UTCEPSS rescore
  12. 2026-07-20 17:08 UTCEPSS rescore
  13. 2026-07-19 14:31 UTCEPSS rescore
  14. 2026-07-19 14:31 UTCEPSS rescore
  15. 2026-07-19 02:29 UTCEPSS rescore
  16. 2026-07-18 10:04 UTCEPSS rescore
  17. 2026-07-17 01:14 UTCGHSA enrichment
  18. 2026-07-16 17:03 UTCEPSS rescore
  19. 2026-07-16 14:00 UTCGHSA enrichment
  20. 2026-07-16 02:44 UTCGHSA enrichment
  21. 2026-07-15 16:57 UTCEPSS rescore
  22. 2026-07-15 16:57 UTCEPSS rescore
  23. 2026-07-15 15:31 UTCGHSA enrichment
  24. 2026-07-15 04:18 UTCGHSA enrichment
  25. 2026-07-15 02:00 UTCEPSS rescore
Show 18 more
  1. 2026-07-15 02:00 UTCEPSS rescore
  2. 2026-07-14 17:01 UTCGHSA enrichment
  3. 2026-07-14 05:48 UTCGHSA enrichment
  4. 2026-07-13 22:30 UTCEPSS rescore
  5. 2026-07-13 18:35 UTCGHSA enrichment
  6. 2026-07-13 07:22 UTCGHSA enrichment
  7. 2026-07-13 06:13 UTCEPSS rescore
  8. 2026-07-12 20:07 UTCGHSA enrichment
  9. 2026-07-12 08:54 UTCGHSA enrichment
  10. 2026-07-12 05:46 UTCEPSS rescore
  11. 2026-07-11 21:41 UTCGHSA enrichment
  12. 2026-07-11 10:28 UTCGHSA enrichment
  13. 2026-07-11 08:27 UTCEPSS rescore
  14. 2026-07-10 23:15 UTCGHSA enrichment
  15. 2026-07-10 12:02 UTCGHSA enrichment
  16. 2026-07-10 00:48 UTCGHSA enrichment
  17. 2026-07-09 13:32 UTCEG score recompute
  18. 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 0% probability of exploitation in the next 30 days, which ranks it in the top 88.2% of all scored CVEs.
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

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