CVE-2026-93981

MEDIUMPre-NVD 4.74.7—
EchelonGraph scoreHIGH confidence

Score 4.7 from GitHub Security Advisory (severity: LOW) published 2026-09-19. a secondary CVSS source baseline 4.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
4.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.7Exploit: None knownExposed: 0

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

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
4.7(high)
EG Risk
21(Track)
EG Risk 21/100SSVC: 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
Severity47% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

September 19, 2026

Last Modified

September 21, 2026

Advisory Details (2)

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

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 Patch Available

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

Vendor Advisories for CVE-2026-93981(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. 2026-09-25 03:35 UTCEG score recompute
  2. 2026-09-25 03:34 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 01:32 UTCEG score recompute
  5. 2026-09-24 01:32 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-22 23:29 UTCEG score recompute
  8. 2026-09-22 23:29 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-21 21:23 UTCEG score recompute
  11. 2026-09-21 21:23 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 20:48 UTCEG score recompute
  14. 2026-09-21 20:48 UTCGHSA enrichment
  15. 2026-09-21 16:56 UTCEG score recompute
  16. 2026-09-21 16:56 UTCGHSA enrichment
  17. 2026-09-20 20:16 UTCEPSS rescore
  18. 2026-09-20 14:30 UTCEG score recompute
  19. 2026-09-20 14:30 UTCGHSA enrichment
  20. 2026-09-19 12:27 UTCEG score recompute
  21. 2026-09-19 12:02 UTCEG score recompute
  22. 2026-09-19 12:00 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-93981?
CVE-2026-93981 is a medium vulnerability 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 disclosed?
CVE-2026-93981 was first published in the National Vulnerability Database on September 19, 2026, with the most recent update on September 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-93981 actively exploited?
CVE-2026-93981 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 88.0% of all scored CVEs.
What is the CVSS score of CVE-2026-93981?
CVE-2026-93981 has a CVSS v3 base score of 4.7 (NVD).
How do I remediate CVE-2026-93981?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-93981, 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

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