CVE-2026-100717

CRITICALPre-NVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score 9.9 from GitHub Security Advisory (severity: HIGH) published 2026-09-26. A secondary CVSS source baseline 9.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 9.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

froxlor is a server administration panel. In versions 2.3.10 and earlier, Validate::validateUrl rejects carriage return and line feed characters only in the path, query and fragment components returned by parse_url, and never inspects the userinfo (user:pass@) components. This is an incomplete fix for GHSA-c3p2. An authenticated low-privilege customer with subdomain-create rights (no admin or change_serversettings privilege required) can supply a subdomain redirect URL that carries a CR/LF payload in the userinfo portion (e.g. http://user%0areturn 200 "pwned";%[email protected]/). The value passes validation, survives IDNA encoding, and is written verbatim into the generated nginx or Apache vhost configuration, allowing the attacker to break out of the emitted directive and inject arbitrary web-server configuration lines. froxlor regenerates and reloads the web-server configuration as root, so the injected directives take effect server-wide and can hijack responses or read local files. The issue is fixed in version 2.3.12.

CVSS v3
9.9
EG Score
9.9CRITICALhigh confidence
EG Risk
45
EG Risk 45/100CISA SSVC

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
Severity99% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 26, 2026

Last Modified

September 30, 2026

Advisory Details (2)

Auto-updated Sep 30, 2026
Patch available. Sources: github.
generic Patch Available

froxlor before 2.3.12 CRLF Injection via validateUrl userinfo | Advisories | VulnCheck

https://www.vulncheck.com/advisories/froxlor-before-2.3.12-crlf-injection-via-validateurl-userinfo
github Patch Available

Incomplete fix of GHSA-c3p2 - validateUrl rejects CR/LF only in path/query/fragment, not in the userinfo · Advisory · froxlor/froxlor · GitHub

https://github.com/froxlor/froxlor/security/advisories/GHSA-gxx3-hwjc-h2gp

Vendor Advisories for CVE-2026-100717(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 59× in last 7d / 69× 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. 2026-10-04 11:58 UTCGHSA enrichment
  2. 2026-10-04 08:16 UTCGHSA enrichment
  3. 2026-10-04 04:33 UTCGHSA enrichment
  4. 2026-10-04 00:51 UTCGHSA enrichment
  5. 2026-10-03 21:09 UTCGHSA enrichment
  6. 2026-10-03 17:26 UTCEG score recompute
  7. 2026-10-03 17:26 UTCGHSA enrichment
  8. 2026-10-03 14:25 UTCEPSS rescore
  9. 2026-10-03 13:44 UTCGHSA enrichment
  10. 2026-10-03 09:59 UTCGHSA enrichment
  11. 2026-10-03 06:17 UTCGHSA enrichment
  12. 2026-10-03 02:34 UTCGHSA enrichment
  13. 2026-10-02 22:51 UTCGHSA enrichment
  14. 2026-10-02 19:09 UTCEG score recompute
  15. 2026-10-02 19:09 UTCGHSA enrichment
  16. 2026-10-02 15:27 UTCGHSA enrichment
  17. 2026-10-02 11:42 UTCGHSA enrichment
  18. 2026-10-02 07:57 UTCGHSA enrichment
  19. 2026-10-02 04:14 UTCGHSA enrichment
  20. 2026-10-02 00:26 UTCGHSA enrichment
  21. 2026-10-01 20:43 UTCEG score recompute
  22. 2026-10-01 20:43 UTCGHSA enrichment
  23. 2026-10-01 19:49 UTCEPSS rescore
  24. 2026-10-01 17:00 UTCGHSA enrichment
  25. 2026-10-01 13:12 UTCGHSA enrichment
Show 44 more
  1. 2026-10-01 09:30 UTCGHSA enrichment
  2. 2026-10-01 05:48 UTCGHSA enrichment
  3. 2026-10-01 02:06 UTCGHSA enrichment
  4. 2026-09-30 22:23 UTCGHSA enrichment
  5. 2026-09-30 18:41 UTCEG score recompute
  6. 2026-09-30 18:41 UTCGHSA enrichment
  7. 2026-09-30 17:24 UTCEG score recompute
  8. 2026-09-30 17:24 UTCGHSA enrichment
  9. 2026-09-30 15:02 UTCEPSS rescore
  10. 2026-09-30 14:40 UTCGHSA enrichment
  11. 2026-09-30 10:57 UTCGHSA enrichment
  12. 2026-09-30 07:13 UTCGHSA enrichment
  13. 2026-09-30 03:30 UTCGHSA enrichment
  14. 2026-09-29 23:47 UTCGHSA enrichment
  15. 2026-09-29 16:46 UTCEG score recompute
  16. 2026-09-29 16:46 UTCGHSA enrichment
  17. 2026-09-29 15:20 UTCEPSS rescore
  18. 2026-09-29 12:51 UTCGHSA enrichment
  19. 2026-09-29 09:08 UTCGHSA enrichment
  20. 2026-09-29 05:23 UTCGHSA enrichment
  21. 2026-09-29 01:41 UTCGHSA enrichment
  22. 2026-09-28 21:59 UTCEG score recompute
  23. 2026-09-28 21:59 UTCGHSA enrichment
  24. 2026-09-28 18:17 UTCGHSA enrichment
  25. 2026-09-28 14:35 UTCEG score recompute
  26. 2026-09-28 14:35 UTCGHSA enrichment
  27. 2026-09-28 13:50 UTCEPSS rescore
  28. 2026-09-28 10:53 UTCGHSA enrichment
  29. 2026-09-28 07:11 UTCGHSA enrichment
  30. 2026-09-28 03:29 UTCGHSA enrichment
  31. 2026-09-27 23:47 UTCGHSA enrichment
  32. 2026-09-27 20:04 UTCGHSA enrichment
  33. 2026-09-27 16:21 UTCEG score recompute
  34. 2026-09-27 16:21 UTCGHSA enrichment
  35. 2026-09-27 12:39 UTCGHSA enrichment
  36. 2026-09-27 08:57 UTCGHSA enrichment
  37. 2026-09-27 05:15 UTCGHSA enrichment
  38. 2026-09-27 01:32 UTCGHSA enrichment
  39. 2026-09-26 21:50 UTCGHSA enrichment
  40. 2026-09-26 18:08 UTCEG score recompute
  41. 2026-09-26 18:08 UTCGHSA enrichment
  42. 2026-09-26 14:25 UTCEG score recompute
  43. 2026-09-26 13:33 UTCEG score recompute
  44. 2026-09-26 13:30 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-100717?
CVE-2026-100717 is a critical vulnerability published on September 26, 2026. froxlor is a server administration panel. In versions 2.3.10 and earlier, Validate::validateUrl rejects carriage return and line feed characters only in the path, query and fragment components returned by parseurl, and never inspects the userinfo (user:pass@) components. This is an incomplete fix…
When was CVE-2026-100717 disclosed?
CVE-2026-100717 was first published on September 26, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100717 actively exploited?
CVE-2026-100717 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100717?
CVE-2026-100717 has a CVSS base score of 9.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100717?
A fix for CVE-2026-100717 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-100717 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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