CVE-2026-78635

MEDIUMPre-NVD 5.05.0—
EchelonGraph scoreHIGH confidence

Score 5.0 from GitHub Security Advisory published 2026-09-08. a secondary CVSS source baseline 5.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.0Exploit: None knownExposed: 0

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

The Okta Privileged Access client URL handler does not insert an option terminator before appending the target value to the command-line arguments. When a scaleft:// protocol handler link contains a value beginning with a hyphen, the underlying CLI framework interprets it as a command-line flag, causing unintended modification of the SSH client's behavior.

CVSS v3
5.0
EG Score
5.0(high)
EG Risk
23(Track)
EG Risk 23/100SSVC: 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
Severity50% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

September 8, 2026

Last Modified

September 10, 2026

Advisory Details (1)

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

Improper Input Validation in the Okta Privileged Access SSH Client URL Handler Argument CVE-2026-78635 - Sep 8, 2026

https://trust.okta.com/security-advisories/improper-input-validation-in-the-okta-privileged-access-ssh-client-url-handler-argument-cve-2026-78635

Vendor Advisories for CVE-2026-78635(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 19× in last 7d / 34× 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. 2026-09-19 09:18 UTCEG score recompute
  2. 2026-09-19 09:17 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 09:56 UTCEG score recompute
  5. 2026-09-18 09:56 UTCGHSA enrichment
  6. 2026-09-17 10:37 UTCEG score recompute
  7. 2026-09-17 10:37 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 11:18 UTCEG score recompute
  10. 2026-09-16 11:18 UTCGHSA enrichment
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 11:59 UTCEG score recompute
  13. 2026-09-15 11:59 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 12:40 UTCEG score recompute
  17. 2026-09-14 12:40 UTCGHSA enrichment
  18. 2026-09-13 13:21 UTCEG score recompute
  19. 2026-09-13 13:21 UTCGHSA enrichment
  20. 2026-09-12 14:02 UTCEG score recompute
  21. 2026-09-12 14:02 UTCGHSA enrichment
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 14:43 UTCEG score recompute
  25. 2026-09-11 14:43 UTCGHSA enrichment
Show 9 more
  1. 2026-09-10 15:24 UTCEG score recompute
  2. 2026-09-10 15:24 UTCGHSA enrichment
  3. 2026-09-10 14:45 UTCEG score recompute
  4. 2026-09-10 14:45 UTCGHSA enrichment
  5. 2026-09-09 16:08 UTCGHSA enrichment
  6. 2026-09-08 21:35 UTCEG score recompute
  7. 2026-09-08 21:34 UTCGHSA enrichment
  8. 2026-09-08 20:30 UTCEG score recompute
  9. 2026-09-08 20:29 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78635?
CVE-2026-78635 is a medium vulnerability published on September 8, 2026. The Okta Privileged Access client URL handler does not insert an option terminator before appending the target value to the command-line arguments. When a scaleft:// protocol handler link contains a value beginning with a hyphen, the underlying CLI framework interprets it as a command-line flag,…
When was CVE-2026-78635 disclosed?
CVE-2026-78635 was first published in the National Vulnerability Database on September 8, 2026, with the most recent update on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78635 actively exploited?
CVE-2026-78635 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 94.8% of all scored CVEs.
What is the CVSS score of CVE-2026-78635?
CVE-2026-78635 has a CVSS v3 base score of 5.0 (NVD).
How do I remediate CVE-2026-78635?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78635, 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-2026-78635

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