HighFix available
Red Hat Security Advisory: nghttp2 security update
Type: advisorySources: OSV
- Products
- libnghttp2, libnghttp2-debuginfo, nghttp2, nghttp2-debuginfo, nghttp2-debugsource
- Affected versions
- Not specified
- Fixed versions
- 0:1.33.0-5.el8_8.2
- CVEs
- CVE-2026-27135
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 30 Oct 2026, 20:29 UTC · Revision 1
Source evidence
Red Hat Security Advisory: nghttp2 security update
core-osv · Original sourcePublished 17 Apr 2026, 10:09 UTC
Red Hat Security Advisory: nghttp2 security update
osv:RHSA-2026:8540
libnghttp2
Fixed versions: 0:1.33.0-5.el8_8.2
libnghttp2-debuginfo
Fixed versions: 0:1.33.0-5.el8_8.2
nghttp2
Fixed versions: 0:1.33.0-5.el8_8.2
nghttp2-debuginfo
Fixed versions: 0:1.33.0-5.el8_8.2
nghttp2-debugsource
Fixed versions: 0:1.33.0-5.el8_8.2
libnghttp2
Fixed versions: 0:1.33.0-5.el8_8.2
libnghttp2-debuginfo
Fixed versions: 0:1.33.0-5.el8_8.2
nghttp2
Fixed versions: 0:1.33.0-5.el8_8.2
nghttp2-debuginfo
Fixed versions: 0:1.33.0-5.el8_8.2
nghttp2-debugsource
Fixed versions: 0:1.33.0-5.el8_8.2
Complete source record
{
"id": "0e6fdaaf3b23ffa331262df16e77035401ee69dbc19f4052ef32f9b1da6f4907",
"url": "https://osv.dev/vulnerability/RHSA-2026%3A8540",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Red Hat Security Advisory: nghttp2 security update",
"summary": "Red Hat Security Advisory: nghttp2 security update",
"evidence": "osv:RHSA-2026:8540",
"products": [
{
"name": {
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"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/0/ranges"
}
],
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},
{
"name": {
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"evidence": "/affected/1/package/name"
},
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{
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"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
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{
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{
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{
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"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/5/package/name"
},
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{
"name": {
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},
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{
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],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/7/package/name"
},
"prerequisites": [],
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{
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"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nghttp2-debuginfo",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "nghttp2-debugsource",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "0:1.33.0-5.el8_8.2",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "RHSA-2026:8540",
"aliases": [
"RHSA-2026:8540"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0:1.33.0-5.el8_8.2"
}
]
}
],
"package": {
"name": "libnghttp2",
"purl": "pkg:rpm/redhat/libnghttp2",
"ecosystem": "Red Hat:rhel_e4s:8.8::baseos"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:8540.json"
}
},
{
"ranges": [
{
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{
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}
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}
],
"package": {
"name": "libnghttp2-debuginfo",
"purl": "pkg:rpm/redhat/libnghttp2-debuginfo",
"ecosystem": "Red Hat:rhel_e4s:8.8::baseos"
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}
},
{
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],
"package": {
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{
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],
"package": {
"name": "nghttp2-debuginfo",
"purl": "pkg:rpm/redhat/nghttp2-debuginfo",
"ecosystem": "Red Hat:rhel_e4s:8.8::baseos"
},
"database_specific": {
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}
},
{
"ranges": [
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}
]
}
],
"package": {
"name": "nghttp2-debugsource",
"purl": "pkg:rpm/redhat/nghttp2-debugsource",
"ecosystem": "Red Hat:rhel_e4s:8.8::baseos"
},
"database_specific": {
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}
},
{
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"package": {
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"purl": "pkg:rpm/redhat/libnghttp2",
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},
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},
{
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],
"package": {
"name": "libnghttp2-debuginfo",
"purl": "pkg:rpm/redhat/libnghttp2-debuginfo",
"ecosystem": "Red Hat:rhel_tus:8.8::baseos"
},
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],
"package": {
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"purl": "pkg:rpm/redhat/nghttp2-debuginfo",
"ecosystem": "Red Hat:rhel_tus:8.8::baseos"
},
"database_specific": {
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},
{
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]
}
],
"package": {
"name": "nghttp2-debugsource",
"purl": "pkg:rpm/redhat/nghttp2-debugsource",
"ecosystem": "Red Hat:rhel_tus:8.8::baseos"
},
"database_specific": {
"source": "https://security.access.redhat.com/data/osv/RHSA-2026:8540.json"
}
}
],
"modified": "2026-10-16T10:27:39Z",
"provider": "osv",
"upstream": [
"CVE-2026-27135"
],
"references": [
"https://access.redhat.com/errata/RHSA-2026:8540",
"https://access.redhat.com/security/updates/classification/#important",
"https://bugzilla.redhat.com/show_bug.cgi?id=2448754",
"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_8540.json",
"https://access.redhat.com/security/cve/CVE-2026-27135",
"https://www.cve.org/CVERecord?id=CVE-2026-27135",
"https://nvd.nist.gov/vuln/detail/CVE-2026-27135",
"https://github.com/nghttp2/nghttp2/commit/5c7df8fa815ac1004d9ecb9d1f7595c4d37f46e1",
"https://github.com/nghttp2/nghttp2/security/advisories/GHSA-6933-cjhr-5qg6"
]
},
"related_cves": [
{
"value": "CVE-2026-27135",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 340171,
"published_at": "2026-04-17T10:09:43+00:00"
}