DEBIAN-CVE-2026-56853

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-56853
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56853.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-56853
Upstream
  • CVE-2026-56853
Published
2026-08-13T22:17:22Z
Modified
2026-09-14T17:03:46Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

When a server is configured to support unencrypted HTTP/2, it reads a few bytes from each new connection to see if they contain the HTTP/2 client preface. ReadHeaderTimeout is unexpectedly not being applied when doing this.

References

Affected packages

Debian:12 / golang-1.19

Package

Name
golang-1.19
Purl
pkg:deb/debian/golang-1.19?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.19.8-2
1.19.9-1
1.19.10-1
1.19.10-2
1.19.11-1
1.19.12-1
1.19.12-2~bpo11+1
1.19.12-2~bpo12+1
1.19.12-2
1.19.13-1~bpo11+1
1.19.13-1~bpo12+1
1.19.13-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56853.json"

Debian:13 / golang-1.24

Package

Name
golang-1.24
Purl
pkg:deb/debian/golang-1.24?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.24.4-1
1.24.4-2
1.24.4-3
1.24.4-4
1.24.7-1
1.24.8-1
1.24.9-1
1.24.12-1
1.24.13-1
1.24.13-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56853.json"

Debian:14 / golang-1.25

Package

Name
golang-1.25
Purl
pkg:deb/debian/golang-1.25?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.25.0-1
1.25.0-2
1.25.1-1
1.25.2-1
1.25.3-1
1.25.6-1
1.25.7-1
1.25.7-2
1.25.8-1
1.25.9-1
1.25.10-1~bpo13+1
1.25.10-1
1.25.10-2~bpo13+1
1.25.10-2
1.25.11-1~bpo13+1
1.25.11-1
1.25.12-1~bpo13+1
1.25.12-1
1.25.13-1
1.25.14-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56853.json"

Debian:14 / golang-1.26

Package

Name
golang-1.26
Purl
pkg:deb/debian/golang-1.26?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.26.6-1

Affected versions

1.*
1.26~rc2-1
1.26~rc3-1
1.26~rc3-2
1.26.0-1
1.26.1-1
1.26.2-1
1.26.2-2
1.26.2-3
1.26.3-1~bpo13+1
1.26.3-1
1.26.3-2~bpo13+1
1.26.3-2
1.26.4-1~bpo13+1
1.26.4-1
1.26.5-1~bpo13+1
1.26.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56853.json"

Debian:14 / golang-1.27

Package

Name
golang-1.27
Purl
pkg:deb/debian/golang-1.27?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.27~rc3-1

Affected versions

1.*
1.27~rc1-1
1.27~rc2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56853.json"