CVE-2026-93981

MEDIUMPre-NVD 4.74.7
EchelonGraph scoreMEDIUM confidence

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

Score 4.7 from GitHub Security Advisory (severity: MODERATE) published 2026-09-30. A secondary CVSS source baseline 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week

Also known asEUVD-2026-83586 (ENISA EUVD) · GHSA-6623-4q32-82v8 (GitHub Security Advisories) · GHSA-hxh3-vqpv-xpqv (GitHub Security Advisories)Source: ENISA EUVD

4.7EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 4.7Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

hono before 4.13.7 fails to HTML-escape plain strings rendered by hono/jsx as a child or fallback of Suspense, as a string child of ErrorBoundary alongside an asynchronous sibling, as the single child of a Context.Provider, or as the root value passed to renderToString() or renderToReadableStream() from hono/jsx/dom/server. These paths stringify their input and treat the result as already-escaped markup, so an attacker who controls such a string during server-side rendering can inject arbitrary HTML and execute script under the application's origin.

CVSS v3
4.7
EG Score
4.7MEDIUMmedium confidence
EG Risk
21
EG Risk 21/100

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)
Severity47% × 45%
Impact severity (EG Severity): CVSS 4.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 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 every mission impact level.
Exploitation none (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
13th
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 (4.7): severity, escalated by confirmed exploitation. This CVE's 4.7 is its impact severity (EG Severity), not escalated.

EG Severity
4.7 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). 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 every mission impact level.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, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). 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.

The score's inputs: 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

September 19, 2026

Last Modified

September 21, 2026

Advisory Details (2)

Auto-updated Sep 19, 2026
Patch available. Sources: github.
Web page

hono/jsx before 4.13.7 Cross-Site Scripting via Unescaped Strings | Advisories | VulnCheck

https://www.vulncheck.com/advisories/hono-jsx-before-4.13.7-cross-site-scripting-via-unescaped-strings
GitHub advisoryMentions a patch (unverified)

hono/jsx renders plain strings unescaped in boundary components, leading to XSS · Advisory · honojs/hono · GitHub

Affected: 4.11.7 (

https://github.com/honojs/hono/security/advisories/GHSA-hxh3-vqpv-xpqv

Patch Availability(5)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatgrafana13-1-main-13.1.6-0.6.hum12026-10-02redhat
redhatgrafana12-4-main-12.4.10-0.10.hum12026-09-30redhat
redhatgrafana13-1-main-13.1.6-0.5.hum12026-09-30redhat
redhatgrafana13-2-main-13.2.1-0.7.hum12026-09-25redhat
npmhono @ 4.13.7 (fixes < 4.13.7)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
hono—
  • every version up to 4.13.7: fixed in 4.13.7
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 56× 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 99 of 105 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 6 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-11-01 07:37 UTCGHSA enrichmentGHSA-hxh3-vqpv-xpqv · GitHub severity MODERATE · GitHub CVSS 4.7
  3. 2026-11-01 07:37 UTCEG score recompute
  4. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  5. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  8. 2026-10-28 10:55 UTCOSV refresh
  9. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-10-25 13:49 UTCEG score recompute
  13. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  14. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  18. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-10-19 12:35 UTCEG score recompute
  20. 2026-10-19 12:35 UTCVendor advisory
  21. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  22. 2026-10-18 02:58 UTCEG score recompute
  23. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  25. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
Show 74 more
  1. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  3. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  4. 2026-10-12 14:42 UTCEG score recompute
  5. 2026-10-11 19:12 UTCEG score recompute
  6. 2026-10-11 16:28 UTCEG score recompute
  7. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  8. 2026-10-11 13:41 UTCEG score recompute
  9. 2026-10-11 10:20 UTCEG score recompute
  10. 2026-10-11 10:20 UTCVendor advisory
  11. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  12. 2026-10-10 08:17 UTCEG score recompute
  13. 2026-10-10 08:17 UTCVendor advisory
  14. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-10-09 06:14 UTCEG score recompute
  16. 2026-10-09 06:14 UTCVendor advisory
  17. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  18. 2026-10-08 04:10 UTCEG score recompute
  19. 2026-10-08 04:10 UTCVendor advisory
  20. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  21. 2026-10-07 02:07 UTCEG score recompute
  22. 2026-10-07 02:07 UTCVendor advisory
  23. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-10-06 00:05 UTCEG score recompute
  25. 2026-10-06 00:05 UTCVendor advisory
  26. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  27. 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  28. 2026-10-04 22:02 UTCVendor advisory
  29. 2026-10-03 19:59 UTCEG score recompute
  30. 2026-10-03 19:59 UTCVendor advisory
  31. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  32. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  33. 2026-10-02 17:57 UTCEG score recompute
  34. 2026-10-02 17:57 UTCVendor advisory
  35. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  36. 2026-10-01 15:55 UTCEG score recompute
  37. 2026-10-01 15:55 UTCVendor advisory
  38. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  39. 2026-09-30 13:53 UTCEG score recompute
  40. 2026-09-30 13:53 UTCVendor advisory
  41. 2026-09-30 13:53 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  42. 2026-09-29 11:50 UTCEG score recompute
  43. 2026-09-29 11:50 UTCVendor advisory
  44. 2026-09-29 11:50 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  45. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  46. 2026-09-28 09:48 UTCEG score recompute
  47. 2026-09-28 09:48 UTCVendor advisory
  48. 2026-09-28 09:48 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  49. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  50. 2026-09-27 07:46 UTCEG score recompute
  51. 2026-09-27 07:46 UTCVendor advisory
  52. 2026-09-27 07:46 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  53. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  54. 2026-09-26 05:43 UTCVendor advisory
  55. 2026-09-26 05:43 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  56. 2026-09-26 05:42 UTCEG score recompute
  57. 2026-09-26 05:42 UTCVendor advisory
  58. 2026-09-26 05:41 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  59. 2026-09-25 03:35 UTCEG score recompute
  60. 2026-09-25 03:34 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  61. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  62. 2026-09-24 01:32 UTCEG score recompute
  63. 2026-09-24 01:32 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  64. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  65. 2026-09-22 23:29 UTCEG score recompute
  66. 2026-09-22 23:29 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  67. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  68. 2026-09-21 21:23 UTCEG score recompute
  69. 2026-09-21 21:23 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  70. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  71. 2026-09-21 20:48 UTCEG score recompute
  72. 2026-09-21 20:48 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7
  73. 2026-09-21 16:56 UTCEG score recompute
  74. 2026-09-21 16:56 UTCGHSA enrichmentGHSA-6623-4q32-82v8 · GitHub severity LOW · GitHub CVSS 4.7

Frequently asked(5)

What is CVE-2026-93981?
CVE-2026-93981 is a medium-severity vulnerability; its CVE record was published on September 19, 2026. hono before 4.13.7 fails to HTML-escape plain strings rendered by hono/jsx as a child or fallback of Suspense, as a string child of ErrorBoundary alongside an asynchronous sibling, as the single child of a Context.Provider, or as the root value passed to renderToString() or renderToReadableStream()…
When was CVE-2026-93981 made public?
CVE-2026-93981 was made public on September 4, 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 19, 2026. EchelonGraph's copy of the record carries a last-modified date of September 21, 2026; the record at its source may have been updated since.
Is CVE-2026-93981 actively exploited?
CVE-2026-93981 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-93981?
CVE-2026-93981 has a CVSS base score of 4.7 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-93981?
A fix for CVE-2026-93981 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-93981 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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