ignition: Fix of 8 CVEs
- CVE-2026-39820: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in consumeComment in net/mail, where repeated string concatenation made nested comment depth O(n^2) - CVE-2026-42499: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic consumePhrase behavior in net/mail, which repeatedly concatenated encoded-word runs into the previous slice element - CVE-2026-33818: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/asn1 Unmarshal when parsing deeply-nested recursive structures - CVE-2026-56853: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to apply ReadHeaderTimeout to the server's unencrypted HTTP/2 client preface read, and clear the connection timeouts once the connection is handed off to http2 - CVE-2026-56858: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix JavaScript regexp context tracking in html/template, where pathological input could close an unescaped '/' early and inject attacker-controlled content - CVE-2026-56859: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/xml, where DecodeElement reset the recursion depth counter - CVE-2026-56860: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in net/url resolvePath when resolving '..' segments - CVE-2026-56862: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix unbounded key derivation work in crypto/tls, where hand
- Products
- ignition, ignition-edge, ignition-grub, ignition-validate
- Affected versions
- Not specified
- Fixed versions
- 2.21.0-1.el9_6.tuxcare.els2
- CVEs
- CVE-2026-33818, CVE-2026-39820, CVE-2026-42499, CVE-2026-56853, CVE-2026-56858, CVE-2026-56859, CVE-2026-56860, CVE-2026-56862
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:48 UTC · Revision 1
Source evidence
- CVE-2026-39820: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in consumeComment in net/mail, where repeated string concatenation made nested comment depth O(n^2) - CVE-2026-42499: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic consumePhrase behavior in net/mail, which repeatedly concatenated encoded-word runs into the previous slice element - CVE-2026-33818: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/asn1 Unmarshal when parsing deeply-nested recursive structures - CVE-2026-56853: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to apply ReadHeaderTimeout to the server's unencrypted HTTP/2 client preface read, and clear the connection timeouts once the connection is handed off to http2 - CVE-2026-56858: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix JavaScript regexp context tracking in html/template, where pathological input could close an unescaped '/' early and inject attacker-controlled content - CVE-2026-56859: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/xml, where DecodeElement reset the recursion depth counter - CVE-2026-56860: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in net/url resolvePath when resolving '..' segments - CVE-2026-56862: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix unbounded key derivation work in crypto/tls, where hand
osv:CLSA-2026-1789469873
ignition
Fixed versions: 2.21.0-1.el9_6.tuxcare.els2
ignition-edge
Fixed versions: 2.21.0-1.el9_6.tuxcare.els2
ignition-grub
Fixed versions: 2.21.0-1.el9_6.tuxcare.els2
ignition-validate
Fixed versions: 2.21.0-1.el9_6.tuxcare.els2
Complete source record
{
"id": "828663cf6fcd7423ceb3f8327595931548075dcda1390fb7f417b3e0fee9f27d",
"url": "https://osv.dev/vulnerability/CLSA-2026-1789469873",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ignition: Fix of 8 CVEs",
"summary": "- CVE-2026-39820: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in consumeComment in net/mail, where repeated string concatenation made nested comment depth O(n^2) - CVE-2026-42499: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic consumePhrase behavior in net/mail, which repeatedly concatenated encoded-word runs into the previous slice element - CVE-2026-33818: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/asn1 Unmarshal when parsing deeply-nested recursive structures - CVE-2026-56853: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to apply ReadHeaderTimeout to the server's unencrypted HTTP/2 client preface read, and clear the connection timeouts once the connection is handed off to http2 - CVE-2026-56858: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix JavaScript regexp context tracking in html/template, where pathological input could close an unescaped '/' early and inject attacker-controlled content - CVE-2026-56859: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix stack exhaustion in encoding/xml, where DecodeElement reset the recursion depth counter - CVE-2026-56860: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix quadratic complexity in net/url resolvePath when resolving '..' segments - CVE-2026-56862: rebuild against golang >= 1.25.7-1.el9_6.tuxcare.els16 to fix unbounded key derivation work in crypto/tls, where hand",
"evidence": "osv:CLSA-2026-1789469873",
"products": [
{
"name": {
"value": "ignition",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.21.0-1.el9_6.tuxcare.els2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ignition-edge",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.21.0-1.el9_6.tuxcare.els2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ignition-grub",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.21.0-1.el9_6.tuxcare.els2",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "ignition-validate",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.21.0-1.el9_6.tuxcare.els2",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1789469873",
"aliases": [
"CLSA-2026-1789469873"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.21.0-1.el9_6.tuxcare.els2"
}
]
}
],
"package": {
"name": "ignition",
"purl": "pkg:rpm/tuxcare/ignition?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789469873.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.21.0-1.el9_6.tuxcare.els2"
}
]
}
],
"package": {
"name": "ignition-edge",
"purl": "pkg:rpm/tuxcare/ignition-edge?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789469873.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.21.0-1.el9_6.tuxcare.els2"
}
]
}
],
"package": {
"name": "ignition-grub",
"purl": "pkg:rpm/tuxcare/ignition-grub?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789469873.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.21.0-1.el9_6.tuxcare.els2"
}
]
}
],
"package": {
"name": "ignition-validate",
"purl": "pkg:rpm/tuxcare/ignition-validate?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1789469873.json"
}
}
],
"modified": "2026-10-26T09:43:23.342766363Z",
"provider": "osv",
"upstream": [
"CVE-2026-33818",
"CVE-2026-39820",
"CVE-2026-42499",
"CVE-2026-56853",
"CVE-2026-56858",
"CVE-2026-56859",
"CVE-2026-56860",
"CVE-2026-56862"
],
"references": [
"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1789469873.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-33818",
"https://nvd.nist.gov/vuln/detail/CVE-2026-39820",
"https://nvd.nist.gov/vuln/detail/CVE-2026-42499",
"https://nvd.nist.gov/vuln/detail/CVE-2026-56853",
"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-2026-39820",
"evidence": "/upstream"
},
{
"value": "CVE-2026-42499",
"evidence": "/upstream"
},
{
"value": "CVE-2026-56853",
"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": 449883,
"published_at": "2026-09-15T10:58:09+00:00"
}