CVE-2026-100714

CRITICALPre-NVD 9.19.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-26. A secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-87687 (ENISA EUVD) · GHSA-fh3h-q9pj-x5qp (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.1Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

Froxlor before 2.3.12 does not restrict or escape the system.letsencryptchallengepath setting: unlike sibling settings hardened in GHSA-33mp, the field has no string_regexp or required_otp guard, and its value is concatenated unescaped into the acme.sh command line built in lib/Froxlor/Cron/Http/LetsEncrypt/AcmeSh.php and executed by the root cron via FileDir::safe_exec. Because safe_exec only blacklists shell metacharacters such as ; | & > < \ $ ~ ?, spaces and quotes survive and the value is word-split into additional acme.sh arguments. An administrator, or any actor able to write settings (for example through the settings-import API), can therefore inject acme.sh options such as --renew-hook, --pre-hook or --post-hook to obtain arbitrary command execution as root at the next Let's Encrypt cron run, or use --config-home/--cert-home for arbitrary file writes. Versions up to and including 2.3.10 are affected; the issue is fixed in 2.3.12.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
41
EG Risk 41/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.5%
EPSS %ILE
45th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 26, 2026

Last Modified

September 26, 2026

Advisory Details (2)

Auto-updated Sep 26, 2026
Fix named in the CVE record. Sources: github.
Web page

Froxlor before 2.3.12 Command Injection via letsencryptchallengepath | Advisories | VulnCheck

https://www.vulncheck.com/advisories/froxlor-before-2.3.12-command-injection-via-letsencryptchallengepath
GitHub advisoryMentions a patch (unverified)

`system.letsencryptchallengepath` setting is concatenated unescaped into the root cron's acme.sh command line (admin→root argument injection) · Advisory · froxlor/froxlor · GitHub

https://github.com/froxlor/froxlor/security/advisories/GHSA-3w4g-cmpj-rj42

Vendor Advisories for CVE-2026-100714(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 23× in last 7d / 139× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 199 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 99 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 11:09 UTCEG score recompute
  2. 2026-11-02 11:09 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  4. 2026-11-01 11:51 UTCEG score recompute
  5. 2026-11-01 11:51 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  6. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  7. 2026-10-31 12:33 UTCEG score recompute
  8. 2026-10-31 12:33 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  9. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  10. 2026-10-30 13:14 UTCEG score recompute
  11. 2026-10-30 13:14 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  13. 2026-10-29 13:57 UTCEG score recompute
  14. 2026-10-29 13:57 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  15. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  16. 2026-10-28 14:39 UTCEG score recompute
  17. 2026-10-28 14:39 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  18. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  19. 2026-10-27 14:53 UTCEG score recompute
  20. 2026-10-27 14:53 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  21. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  22. 2026-10-26 15:32 UTCEG score recompute
  23. 2026-10-26 15:32 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  24. 2026-10-26 07:24 UTCEG score recompute
  25. 2026-10-26 07:24 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
Show 75 more
  1. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  2. 2026-10-25 15:58 UTCEG score recompute
  3. 2026-10-25 08:07 UTCEG score recompute
  4. 2026-10-25 08:07 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  5. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  6. 2026-10-24 08:49 UTCEG score recompute
  7. 2026-10-24 08:49 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  8. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  9. 2026-10-23 09:31 UTCEG score recompute
  10. 2026-10-23 09:30 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  11. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  12. 2026-10-22 10:12 UTCEG score recompute
  13. 2026-10-22 10:11 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  14. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  15. 2026-10-21 10:52 UTCEG score recompute
  16. 2026-10-21 10:52 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  17. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  18. 2026-10-20 11:34 UTCEG score recompute
  19. 2026-10-20 11:34 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  20. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  21. 2026-10-19 12:16 UTCEG score recompute
  22. 2026-10-19 12:15 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  23. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  24. 2026-10-18 10:26 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-10-18 05:11 UTCEG score recompute
  26. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  27. 2026-10-17 07:27 UTCEG score recompute
  28. 2026-10-17 07:26 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  29. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  30. 2026-10-16 08:08 UTCEG score recompute
  31. 2026-10-16 08:08 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  32. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  33. 2026-10-15 07:11 UTCEG score recompute
  34. 2026-10-15 07:11 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  35. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  36. 2026-10-14 03:08 UTCEG score recompute
  37. 2026-10-14 03:07 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  38. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  39. 2026-10-12 23:10 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  40. 2026-10-12 16:41 UTCEG score recompute
  41. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  42. 2026-10-12 03:00 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  43. 2026-10-11 22:59 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  44. 2026-10-11 20:16 UTCEG score recompute
  45. 2026-10-11 19:06 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  46. 2026-10-11 18:29 UTCEG score recompute
  47. 2026-10-11 15:13 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  48. 2026-10-11 15:02 UTCEG score recompute
  49. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  50. 2026-10-11 11:21 UTCEG score recompute
  51. 2026-10-11 11:21 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  52. 2026-10-11 07:22 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  53. 2026-10-11 03:30 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  54. 2026-10-10 23:17 UTCEG score recompute
  55. 2026-10-10 23:17 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  56. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  57. 2026-10-10 19:25 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  58. 2026-10-10 15:23 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  59. 2026-10-10 11:30 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  60. 2026-10-10 07:37 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  61. 2026-10-10 03:46 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  62. 2026-10-09 23:54 UTCEG score recompute
  63. 2026-10-09 23:53 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  64. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  65. 2026-10-09 20:01 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  66. 2026-10-09 16:09 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  67. 2026-10-09 12:16 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  68. 2026-10-09 08:22 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  69. 2026-10-09 04:29 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  70. 2026-10-09 00:37 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  71. 2026-10-08 20:46 UTCEG score recompute
  72. 2026-10-08 20:45 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  73. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  74. 2026-10-08 16:54 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1
  75. 2026-10-08 10:12 UTCGHSA enrichmentGHSA-fh3h-q9pj-x5qp · GitHub severity CRITICAL · GitHub CVSS 9.1

Frequently asked(5)

What is CVE-2026-100714?
CVE-2026-100714 is a critical-severity vulnerability; its CVE record was published on September 26, 2026. Froxlor before 2.3.12 does not restrict or escape the system.letsencryptchallengepath setting: unlike sibling settings hardened in GHSA-33mp, the field has no string_regexp or required_otp guard, and its value is concatenated unescaped into the acme.sh command line built in…
When was CVE-2026-100714 made public?
CVE-2026-100714 was made public on September 6, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on September 26, 2026. EchelonGraph's copy of the record carries a last-modified date of September 26, 2026; the record at its source may have been updated since.
Is CVE-2026-100714 actively exploited?
CVE-2026-100714 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100714?
CVE-2026-100714 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100714?
The CVE record for CVE-2026-100714 names the fix: "Versions up to and including 2.3.10 are affected; the issue is fixed in 2.3.12." The vendor advisories EchelonGraph has for CVE-2026-100714 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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