Low
hono/jsx before 4.13.7 Cross-Site Scripting via Unescaped Strings
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-93981
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 18:05 UTC · Revision 1
Source evidence
hono/jsx before 4.13.7 Cross-Site Scripting via Unescaped Strings
core-osv · Original sourcePublished 19 Sept 2026, 11:53 UTC
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.
osv:CVE-2026-93981
Complete source record
{
"id": "2476364be088609079dbb69727ef9b57c20ba9b714cc3bc522b390945932b0a5",
"url": "https://osv.dev/vulnerability/CVE-2026-93981",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "hono/jsx before 4.13.7 Cross-Site Scripting via Unescaped Strings",
"summary": "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.",
"evidence": "osv:CVE-2026-93981",
"products": [],
"severity": "low",
"structured": {
"id": "CVE-2026-93981",
"aliases": [
"CVE-2026-93981",
"GHSA-hxh3-vqpv-xpqv"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/honojs/hono",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "eebdf7be39abf0a872671835ccce0c4f03ea497a"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "4.13.7"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "4.13.7"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
"versions": [
"v4.13.6",
"v4.13.5",
"v4.13.4",
"v4.13.1",
"v4.13.3",
"v4.13.2",
"v4.13.0",
"v4.12.34",
"v4.12.33",
"v4.12.32",
"v4.12.31",
"v4.12.30",
"v4.12.29",
"v4.12.28",
"v4.12.27",
"v4.12.26",
"v4.12.25",
"v4.12.24",
"v4.12.23",
"v4.12.22",
"v4.12.21",
"v4.12.20",
"v4.12.19",
"v4.12.18",
"v4.12.17",
"v4.12.16",
"v4.12.15",
"v4.12.14",
"v4.12.13",
"v4.12.12",
"v4.12.11",
"v4.12.10",
"v4.12.9",
"v4.12.8",
"v4.12.7",
"v4.12.6",
"v4.12.5",
"v4.12.4",
"v4.12.3",
"v4.12.2",
"v4.12.1",
"v4.12.0",
"v4.11.10",
"v4.11.9",
"v4.11.8",
"v4.11.7",
"v4.11.6",
"v4.11.5",
"v4.11.4",
"v4.11.3",
"v4.11.2",
"v4.11.1",
"v4.11.0",
"v4.10.8",
"v4.10.7",
"v4.10.6",
"v4.10.5",
"v4.10.4",
"v4.10.3",
"v4.10.2",
"v4.10.1",
"v4.10.0",
"v4.9.12",
"v4.9.11",
"v4.9.10",
"v4.9.9",
"v4.9.8",
"v4.9.7",
"v4.9.6",
"v4.9.5",
"v4.9.4",
"v4.9.3",
"v4.9.2",
"v4.9.1",
"v4.9.0",
"v4.8.12",
"v4.8.11",
"v4.8.10",
"v4.8.9",
"v4.8.8",
"v4.8.7",
"v4.8.6",
"v4.8.5",
"v4.8.4",
"v4.8.3",
"v4.8.2",
"v4.8.1",
"v4.8.0",
"v4.7.11",
"v4.7.10",
"v4.7.9",
"v4.7.8",
"v4.7.7",
"v4.7.6",
"v4.7.5",
"v4.7.4",
"v4.7.3",
"v4.7.2",
"v4.7.1",
"v4.7.0",
"v4.6.20",
"v4.6.19",
"v4.6.18",
"v4.6.17",
"v4.6.16",
"v4.6.15",
"v4.6.14",
"v4.6.13",
"v4.6.12",
"v4.6.11",
"v4.6.10",
"v4.6.9",
"v4.6.8",
"v4.6.7",
"v4.6.6",
"v4.6.5",
"v4.6.4",
"v4.6.3",
"v4.6.2",
"v4.6.1",
"v4.6.0",
"v4.5.11",
"v4.5.10",
"v4.5.9",
"v4.5.8",
"v4.5.7",
"v4.5.6",
"v4.5.5",
"v4.5.4",
"v4.5.3",
"v4.5.2",
"v4.5.1",
"v4.5.0",
"v4.4.13",
"v4.4.12",
"v4.4.11",
"v4.4.10",
"v4.5.0-rc.2",
"v4.4.9",
"v4.4.8",
"v4.4.7",
"v4.4.6",
"v4.5.0-rc.1",
"v4.4.5",
"v4.4.4",
"v4.4.3",
"v4.4.2",
"v4.4.1",
"v4.4.0",
"v4.3.11",
"v4.3.10",
"v4.3.9",
"v4.3.8",
"v4.3.7",
"v4.3.6",
"v4.3.5",
"v4.3.4",
"v4.3.3",
"v4.3.2",
"v4.3.1",
"v4.3.0",
"v4.2.9",
"v4.2.8",
"v4.2.7",
"v4.2.6",
"v4.2.5",
"v4.2.4",
"v4.2.3",
"v4.2.2",
"v4.2.1",
"v4.2.0",
"v4.1.7",
"v4.1.6",
"v4.1.5",
"v4.1.4",
"v4.1.3",
"v4.1.2",
"v4.1.1",
"v4.1.0",
"v4.0.10",
"v4.1.0-rc.1",
"v4.0.9",
"v4.0.8",
"v4.0.7",
"v4.0.6",
"v4.0.5",
"v4.0.4",
"v4.0.3",
"v4.0.2",
"v4.0.1",
"v4.0.0",
"v3.12.12",
"v3.12.11",
"v3.12.10",
"v3.12.9",
"v4.0.0-rc.3",
"v3.12.8",
"v3.12.7",
"v4.0.0-rc.2",
"v3.12.6",
"v4.0.0-rc.1",
"v3.12.5",
"v3.12.4",
"v3.12.3",
"v3.12.2",
"v4.0.0-rc.0",
"v3.12.1",
"v3.12.0",
"v3.11.12",
"v3.11.11",
"v3.11.10",
"v3.11.9",
"v3.11.8",
"v3.11.7",
"v3.11.6",
"v3.11.5",
"v3.11.4",
"v3.11.3",
"v3.11.2",
"v3.11.1",
"v3.11.0",
"v3.10.5",
"v3.10.4",
"v3.10.3",
"v3.10.2",
"v3.10.1",
"v3.10.0",
"v3.9.2",
"v3.9.1",
"v3.9.0",
"v3.9.0-rc.1",
"v3.8.4",
"v3.8.3",
"v3.8.2",
"v3.8.1",
"v3.8.0",
"v3.8.0-rc.3",
"v3.7.6",
"v3.8.0-rc.2",
"v3.7.5",
"v3.8.0-rc.1",
"v3.7.4",
"v3.7.3",
"v3.7.2",
"v3.7.1",
"v3.7.0",
"v3.6.3",
"v3.6.2",
"v3.6.1",
"v3.6.0",
"v3.6.0-rc.2",
"v3.6.0-rc.1",
"v3.5.8",
"v3.5.7",
"v3.5.6",
"v3.5.5",
"v3.5.4",
"v3.5.3",
"v3.5.2",
"v3.5.1",
"v3.5.0",
"vv3.5.0-rc.1",
"v3.4.3",
"v3.4.2",
"v3.4.1",
"v3.4.0",
"v3.3.4",
"v3.3.3",
"v3.3.2",
"v3.3.1",
"v3.3.0",
"v3.3.0-rc.1",
"v3.2.7",
"v3.2.6",
"v3.2.5",
"v3.2.4",
"v3.2.3",
"v3.2.2",
"v3.2.1",
"v3.2.0",
"v3.2.0-rc.3",
"v3.2.0-rc.1",
"v3.1.8",
"v3.1.7",
"v3.1.6",
"v3.1.5",
"v3.1.4",
"v3.1.3",
"v3.1.2",
"v3.1.1",
"v3.1.0",
"v3.0.5",
"v3.0.4",
"v3.0.3",
"v3.0.2",
"v3.0.1",
"v3.0.0",
"v3.0.0-rc.16",
"v3.0.0-rc.15",
"v2.7.8",
"v3.0.0-rc.14",
"v3.0.0-rc.13",
"v2.7.7",
"v2.7.6",
"v3.0.0-rc.9",
"v3.0.0-rc.10",
"v2.7.5",
"v2.7.4",
"v2.7.3",
"v3.0.0-rc.5",
"v2.7.2",
"v3.0.0-rc.4",
"v2.7.1",
"v2.7.0",
"v2.6.2",
"v2.6.1",
"v2.6.0",
"v2.5.10",
"v2.5.9",
"v2.5.8",
"v2.5.7",
"v2.5.6",
"v2.5.5",
"v2.5.4",
"v2.5.3",
"v2.5.2",
"v2.5.1",
"v2.5.0",
"v2.4.1",
"v2.4.0",
"v2.3.2",
"v2.3.1",
"v2.3.0",
"v2.2.5",
"v2.2.4",
"v2.2.3",
"v2.2.2",
"v2.2.1",
"v2.2.0",
"v2.1.4",
"v2.1.3",
"v2.1.2",
"v2.1.1",
"v2.1.0",
"v2.0.9",
"v2.0.8",
"v2.0.7",
"v2.0.6",
"v2.0.5",
"v2.0.4",
"v2.0.3",
"v2.0.2",
"v2.0.1",
"v2.0.0",
"v1.6.5-0",
"v1.6.4",
"v1.6.3",
"v1.6.2",
"v1.6.1",
"v1.6.0",
"v1.6.0-0",
"v1.5.2",
"v1.5.1",
"v1.5.0",
"v1.4.7",
"v1.4.6",
"v1.4.5",
"v1.4.4",
"v1.4.3",
"v1.4.2",
"v1.4.1",
"v1.4.0",
"v1.3.6",
"v1.3.5",
"v1.3.4",
"v1.3.3",
"v1.3.2",
"v1.3.1",
"v1.3.0",
"v1.2.2",
"v1.2.1",
"v1.2.0",
"v1.1.1",
"v1.1.0",
"v1.0.0",
"v0.5.10",
"v0.5.9",
"v0.5.8",
"v0.5.7",
"v0.5.6",
"v0.5.5",
"v0.5.4",
"v0.5.3",
"v0.5.2",
"v0.5.1",
"v0.5.0",
"v0.4.2",
"v0.4.1",
"v0.4.0",
"v0.3.8",
"v0.3.7",
"v0.3.6",
"v0.3.5",
"v0.3.4",
"v0.3.3",
"v0.3.2",
"v0.3.1",
"v0.3.0",
"v0.2.4",
"v0.2.3",
"v0.2.2",
"v0.2.1",
"v0.2.0",
"v0.1.0",
"v0.0.16",
"v0.0.15",
"v0.0.14",
"v0.0.13",
"v0.0.11",
"v0.0.10",
"v0.0.9",
"v0.0.8",
"v0.0.7",
"v0.0.5",
"v0.0.4",
"v0.0.2",
"v0.0.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-93981.json"
}
}
],
"modified": "2026-10-28T02:30:31.001017607Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93981.json",
"https://github.com/honojs/hono/security/advisories/GHSA-hxh3-vqpv-xpqv",
"https://nvd.nist.gov/vuln/detail/CVE-2026-93981",
"https://www.vulncheck.com/advisories/hono-jsx-before-4.13.7-cross-site-scripting-via-unescaped-strings"
],
"provider_metadata": {
"cwe_ids": [
"CWE-79"
],
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93981.json"
}
},
"related_cves": [
{
"value": "CVE-2026-93981",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 498200,
"published_at": "2026-09-19T11:53:34.294+00:00"
}