CVE-2026-34442

MEDIUMNVD 6.16.1
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 0.2% (12th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-17673 (ENISA EUVD)Source: ENISA EUVD

6.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.1Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, host header manipulation in FreeScout version (http://localhost:8080/system/status) allows an attacker to inject an arbitrary domain into generated absolute URLs. This leads to External Resource Loading and Open Redirect behavior. When the application constructs links and assets using the unvalidated Host header, user requests can be redirected to attacker-controlled domains and external resources may be loaded from malicious servers. This issue has been patched in version 1.8.211.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
43
EG Risk 43/100

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)
Severity61% × 45%
Impact severity (EG Severity): CVSS 6.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
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 public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
12th
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 (6.1): severity, escalated by confirmed exploitation. This CVE's 6.1 is its impact severity (EG Severity), not escalated.

EG Severity
6.1 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS. 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: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: 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).

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

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

March 31, 2026

Last Modified

July 24, 2026

Advisory Details (3)

Auto-updated Jul 25, 2026
Patch available. Sources: github_release, github, github_commit.
GitHub advisoryMentions a patch (unverified)

Host Header Injection Leading to External Resource Loading and Open Redirect in FreeScout · Advisory · freescout-help-desk/freescout · GitHub

https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-822g-7rw5-53xj
GitHub release Patch Available

1.8.211

Patch available: freescout-help-desk/freescout 1.8.211

https://github.com/freescout-help-desk/freescout/releases/tag/1.8.211
GitHub commit Patch Available

commit 889d75c8e3c1 (freescout-help-desk/freescout)

Patch available: freescout-help-desk/freescout 1.8.211 (contains commit 889d75c8e3c1)

https://github.com/freescout-help-desk/freescout/commit/889d75c8e3c15e6a7ddb6a4d4f65cc0379c29213

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 37× 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 98 of 107 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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 9 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  3. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-10-27 09:25 UTCOSV refresh
  5. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  6. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  7. 2026-10-25 14:33 UTCEG score recompute
  8. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  9. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  10. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  11. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  12. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  13. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  14. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  15. 2026-10-18 03:45 UTCEG score recompute
  16. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  17. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  18. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  19. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  20. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  21. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  22. 2026-10-12 16:02 UTCEG score recompute
  23. 2026-10-11 19:54 UTCEG score recompute
  24. 2026-10-11 17:08 UTCEG score recompute
  25. 2026-10-11 14:35 UTCEG score recompute
Show 73 more
  1. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  2. 2026-10-11 02:31 UTCOSV refresh
  3. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  4. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  5. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  6. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  7. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  8. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  9. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  10. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  11. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  13. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  14. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  15. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  16. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  17. 2026-09-21 14:19 UTCOSV refresh
  18. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  21. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  22. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  23. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  26. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  27. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  28. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  29. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  30. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  31. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  32. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  33. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  34. 2026-09-02 12:04 UTCOSV refresh
  35. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  36. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  37. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  38. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  39. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  40. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  41. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  42. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  43. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  44. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  45. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  46. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  47. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  48. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  49. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  50. 2026-08-16 09:36 UTCEG score recompute
  51. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  52. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  53. 2026-08-14 06:00 UTCEG score recompute
  54. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  55. 2026-08-12 20:16 UTCEG score recompute
  56. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  57. 2026-08-11 08:56 UTCEG score recompute
  58. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  59. 2026-08-10 07:14 UTCEG score recompute
  60. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  61. 2026-08-09 05:34 UTCEG score recompute
  62. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  63. 2026-08-07 15:40 UTCEG score recompute
  64. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  65. 2026-08-06 00:33 UTCEG score recompute
  66. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  67. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  68. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  69. 2026-08-03 22:53 UTCEG score recompute
  70. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  71. 2026-08-02 14:54 UTCEG score recompute
  72. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  73. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.2% · 12th percentile

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Frequently asked(5)

What is CVE-2026-34442?
CVE-2026-34442 is a medium-severity vulnerability; its CVE record was published on March 31, 2026. FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, host header manipulation in FreeScout version (http://localhost:8080/system/status) allows an attacker to inject an arbitrary domain into generated absolute URLs. This leads to External…
When was the CVE record for CVE-2026-34442 published?
The CVE record for CVE-2026-34442 was published on March 31, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 24, 2026; the record at its source may have been updated since.
Is CVE-2026-34442 actively exploited?
CVE-2026-34442 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-34442?
CVE-2026-34442 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-34442?
A fix for CVE-2026-34442 is available: update to the fixed version the vendor names in its advisory.

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