CVE-2026-90767

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-13. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: Elevated riskExposed: 0

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

Froxlor before 2.3.12 fails to properly validate multi-line SSH public keys in the SshKeys::add() endpoint, allowing customers to inject arbitrary lines into authorized_keys files. Attackers can inject malicious SSH key entries with option directives to gain persistent unauthorized access that survives key deletion and SSH access revocation.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
45(Track)
EG Risk 45/100SSVC: 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
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

September 13, 2026

Last Modified

September 14, 2026

Advisory Details (5)

Auto-updated Sep 13, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Froxlor before 2.3.12 SSH Key Injection via authorized_keys | Advisories | VulnCheck

https://www.vulncheck.com/advisories/froxlor-before-2.3.12-ssh-key-injection-via-authorized-keys
generic

GitHub - froxlor/froxlor: The server administration software for your needs - The official Froxlor development Git repository · GitHub

https://github.com/froxlor/Froxlor
generic

froxlor/lib/Froxlor/Cron/System/SshKeys.php at 2.3.10 · froxlor/froxlor · GitHub

https://github.com/froxlor/Froxlor/blob/2.3.10/lib/Froxlor/Cron/System/SshKeys.php
generic

froxlor/lib/Froxlor/Api/Commands/SshKeys.php at 2.3.10 · froxlor/froxlor · GitHub

https://github.com/froxlor/Froxlor/blob/2.3.10/lib/Froxlor/Api/Commands/SshKeys.php
github Patch Available🟡 PoC Available

SSH authorized_keys injection via multi-line ssh_pubkey (customer-controlled) · Advisory · froxlor/froxlor · GitHub

https://github.com/froxlor/Froxlor/security/advisories/GHSA-p3v3-74gc-jh5f

Vendor Advisories for CVE-2026-90767(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 22× in last 7d / 22× 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. 2026-09-18 21:25 UTCEG score recompute
  2. 2026-09-18 21:25 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-17 20:43 UTCEG score recompute
  5. 2026-09-17 20:43 UTCGHSA enrichment
  6. 2026-09-17 19:32 UTCEPSS rescore
  7. 2026-09-16 20:00 UTCEG score recompute
  8. 2026-09-16 20:00 UTCGHSA enrichment
  9. 2026-09-16 14:09 UTCEPSS rescore
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 19:17 UTCEG score recompute
  12. 2026-09-15 19:17 UTCGHSA enrichment
  13. 2026-09-15 03:12 UTCEPSS rescore
  14. 2026-09-14 18:34 UTCEG score recompute
  15. 2026-09-14 18:34 UTCGHSA enrichment
  16. 2026-09-14 17:50 UTCEG score recompute
  17. 2026-09-14 17:50 UTCGHSA enrichment
  18. 2026-09-14 12:03 UTCEG score recompute
  19. 2026-09-14 12:03 UTCGHSA enrichment
  20. 2026-09-13 11:21 UTCEG score recompute
  21. 2026-09-13 10:50 UTCEG score recompute
  22. 2026-09-13 10:49 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-90767?
CVE-2026-90767 is a medium vulnerability published on September 13, 2026. Froxlor before 2.3.12 fails to properly validate multi-line SSH public keys in the SshKeys::add() endpoint, allowing customers to inject arbitrary lines into authorized_keys files. Attackers can inject malicious SSH key entries with option directives to gain persistent unauthorized access that…
When was CVE-2026-90767 disclosed?
CVE-2026-90767 was first published in the National Vulnerability Database on September 13, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90767 actively exploited?
CVE-2026-90767 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 83.6% of all scored CVEs.
What is the CVSS score of CVE-2026-90767?
CVE-2026-90767 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-90767?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90767, 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-2026-90767

Explore →

Is Your Infrastructure Affected by CVE-2026-90767?

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

Start Free Scan →Browse All CVEs