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RHSA-2026:54662
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Source
https://access.redhat.com/errata/RHSA-2026:54662
Import Source
https://security.access.redhat.com/data/osv/RHSA-2026:54662.json
JSON Data
https://api.osv.dev/v1/vulns/RHSA-2026:54662
Upstream
CVE-2026-58055
Published
2026-08-14T10:17:04Z
Modified
2026-08-17T10:16:48Z
Severity
5.4 (Medium)
CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS Calculator
Summary
Red Hat Security Advisory: nghttp2 security update
Details
References
https://access.redhat.com/errata/RHSA-2026:54662
https://access.redhat.com/security/updates/classification/#moderate
https://bugzilla.redhat.com/show_bug.cgi?id=2493954
https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_54662.json
https://access.redhat.com/security/cve/CVE-2026-58055
https://www.cve.org/CVERecord?id=CVE-2026-58055
https://nvd.nist.gov/vuln/detail/CVE-2026-58055
https://github.com/bikini/exploitarium/tree/main/nghttp2-nghttpx-upgrade-queue-poison-poc
https://github.com/nghttp2/nghttp2/commit/ab28105c4a0197da24f8bfc414bc116055249e1e
https://www.vulncheck.com/advisories/nghttp2-nghttpx-http-request-response-smuggling-via-upgrade-request-with-content-length
Affected packages
Red Hat:enterprise_linux:9::baseos
libnghttp2
Package
Name
libnghttp2
Purl
pkg:rpm/redhat/libnghttp2
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.43.0-6.el9_8.2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:54662.json"
libnghttp2-debuginfo
Package
Name
libnghttp2-debuginfo
Purl
pkg:rpm/redhat/libnghttp2-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.43.0-6.el9_8.2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:54662.json"
nghttp2
Package
Name
nghttp2
Purl
pkg:rpm/redhat/nghttp2
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.43.0-6.el9_8.2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:54662.json"
nghttp2-debuginfo
Package
Name
nghttp2-debuginfo
Purl
pkg:rpm/redhat/nghttp2-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.43.0-6.el9_8.2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:54662.json"
nghttp2-debugsource
Package
Name
nghttp2-debugsource
Purl
pkg:rpm/redhat/nghttp2-debugsource
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.43.0-6.el9_8.2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:54662.json"
Red Hat:enterprise_linux:9::crb
libnghttp2-debuginfo
Package
Name
libnghttp2-debuginfo
Purl
pkg:rpm/redhat/libnghttp2-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.43.0-6.el9_8.2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:54662.json"
libnghttp2-devel
Package
Name
libnghttp2-devel
Purl
pkg:rpm/redhat/libnghttp2-devel
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.43.0-6.el9_8.2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:54662.json"
nghttp2
Package
Name
nghttp2
Purl
pkg:rpm/redhat/nghttp2
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.43.0-6.el9_8.2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:54662.json"
nghttp2-debuginfo
Package
Name
nghttp2-debuginfo
Purl
pkg:rpm/redhat/nghttp2-debuginfo
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.43.0-6.el9_8.2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:54662.json"
nghttp2-debugsource
Package
Name
nghttp2-debugsource
Purl
pkg:rpm/redhat/nghttp2-debugsource
Affected ranges
Type
ECOSYSTEM
Events
Introduced
0
Unknown introduced version / All previous versions are affected
Fixed
0:1.43.0-6.el9_8.2
Database specific
source
"https://security.access.redhat.com/data/osv/RHSA-2026:54662.json"
RHSA-2026:54662 - OSV