ignition: Fix of 6 CVEs
- CVE-2026-39821: reject xn-- labels that decode to an all-ASCII label in idna ToASCII/ToUnicode, preventing hostname authorization bypass - CVE-2026-33818: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which enforces a recursion limit in encoding/asn1 Unmarshal - CVE-2026-56858: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which fixes the html/template JavaScript context tracking XSS - CVE-2026-56859: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which adds a recursion depth guard in encoding/xml decoding - CVE-2026-56860: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which avoids quadratic complexity in net/url path resolution - CVE-2026-56862: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which stops counting post-handshake crypto/tls KeyUpdate messages as state-advancing
- Products
- ignition, ignition-edge, ignition-validate
- Affected versions
- Not specified
- Fixed versions
- 2.15.0-2.el9_2.tuxcare.els1
- CVEs
- CVE-2026-33818, CVE-2026-39821, CVE-2026-56858, CVE-2026-56859, CVE-2026-56860, CVE-2026-56862
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:45 UTC · Revision 1
Source evidence
- CVE-2026-39821: reject xn-- labels that decode to an all-ASCII label in idna ToASCII/ToUnicode, preventing hostname authorization bypass - CVE-2026-33818: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which enforces a recursion limit in encoding/asn1 Unmarshal - CVE-2026-56858: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which fixes the html/template JavaScript context tracking XSS - CVE-2026-56859: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which adds a recursion depth guard in encoding/xml decoding - CVE-2026-56860: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which avoids quadratic complexity in net/url path resolution - CVE-2026-56862: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which stops counting post-handshake crypto/tls KeyUpdate messages as state-advancing
osv:CLSA-2026-1789570040
ignition
Fixed versions: 2.15.0-2.el9_2.tuxcare.els1
ignition-edge
Fixed versions: 2.15.0-2.el9_2.tuxcare.els1
ignition-validate
Fixed versions: 2.15.0-2.el9_2.tuxcare.els1
Complete source record
{
"id": "99731249c23752236a2c3c1d2521f57d3500858a22ab1150115df14e474c71d9",
"url": "https://osv.dev/vulnerability/CLSA-2026-1789570040",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ignition: Fix of 6 CVEs",
"summary": "- CVE-2026-39821: reject xn-- labels that decode to an all-ASCII label in idna ToASCII/ToUnicode, preventing hostname authorization bypass - CVE-2026-33818: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which enforces a recursion limit in encoding/asn1 Unmarshal - CVE-2026-56858: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which fixes the html/template JavaScript context tracking XSS - CVE-2026-56859: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which adds a recursion depth guard in encoding/xml decoding - CVE-2026-56860: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which avoids quadratic complexity in net/url path resolution - CVE-2026-56862: rebuilt against golang >= 1.22.9-1.tuxcare.els26 which stops counting post-handshake crypto/tls KeyUpdate messages as state-advancing",
"evidence": "osv:CLSA-2026-1789570040",
"products": [
{
"name": {
"value": "ignition",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.15.0-2.el9_2.tuxcare.els1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ignition-edge",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.15.0-2.el9_2.tuxcare.els1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ignition-validate",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.15.0-2.el9_2.tuxcare.els1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1789570040",
"aliases": [
"CLSA-2026-1789570040"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.15.0-2.el9_2.tuxcare.els1"
}
]
}
],
"package": {
"name": "ignition",
"purl": "pkg:rpm/tuxcare/ignition?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789570040.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.15.0-2.el9_2.tuxcare.els1"
}
]
}
],
"package": {
"name": "ignition-edge",
"purl": "pkg:rpm/tuxcare/ignition-edge?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789570040.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.15.0-2.el9_2.tuxcare.els1"
}
]
}
],
"package": {
"name": "ignition-validate",
"purl": "pkg:rpm/tuxcare/ignition-validate?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789570040.json"
}
}
],
"modified": "2026-10-26T09:43:10.046033259Z",
"provider": "osv",
"upstream": [
"CVE-2026-33818",
"CVE-2026-39821",
"CVE-2026-56858",
"CVE-2026-56859",
"CVE-2026-56860",
"CVE-2026-56862"
],
"references": [
"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1789570040.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-33818",
"https://nvd.nist.gov/vuln/detail/CVE-2026-39821",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56858",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56859",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56860",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56862"
]
},
"related_cves": [
{
"value": "CVE-2026-33818",
"evidence": "/upstream"
},
{
"value": "CVE-2026-39821",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56858",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56859",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56860",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56862",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449733,
"published_at": "2026-09-16T14:47:34+00:00"
}