DEBIAN-CVE-2026-1642

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Source
https://security-tracker.debian.org/tracker/CVE-2026-1642
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1642.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-1642
Upstream
Downstream
Published
2026-02-04T15:16:14.190Z
Modified
2026-02-12T22:15:34.061513Z
Severity
  • 8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

A vulnerability exists in NGINX OSS and NGINX Plus when configured to proxy to upstream Transport Layer Security (TLS) servers. An attacker with a man-in-the-middle (MITM) position on the upstream server side—along with conditions beyond the attacker's control—may be able to inject plain text data into the response from an upstream proxied server.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

References

Affected packages

Debian:11 / nginx

Package

Name
nginx
Purl
pkg:deb/debian/nginx?arch=source

Affected ranges

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

Affected versions

1.*
1.18.0-6.1
1.18.0-6.1+deb11u1
1.18.0-6.1+deb11u2
1.18.0-6.1+deb11u3
1.18.0-6.1+deb11u4
1.18.0-6.1+deb11u5
1.18.0-7
1.18.0-8
1.18.0-9
1.20.2-1
1.20.2-2
1.20.2-3~exp1
1.22.0-1~exp1
1.22.0-1~exp2
1.22.0-1
1.22.0-2~exp1
1.22.0-2~exp2
1.22.0-2~exp3
1.22.0-2~exp4
1.22.0-2
1.22.0-3
1.22.0-3.1
1.22.1-1~exp1
1.22.1-1~exp2
1.22.1-1
1.22.1-2~exp1
1.22.1-2~exp2
1.22.1-2
1.22.1-3~exp1
1.22.1-3
1.22.1-4
1.22.1-5
1.22.1-6~exp1
1.22.1-6
1.22.1-7
1.22.1-8
1.22.1-9
1.24.0-1~exp1
1.24.0-1
1.24.0-2
1.26.0-1~exp1
1.26.0-1
1.26.0-2
1.26.0-3
1.26.2-1
1.26.3-1
1.26.3-2
1.26.3-3
1.28.0-1
1.28.0-2
1.28.0-3
1.28.0-4
1.28.0-5
1.28.0-6
1.28.1-1
1.28.1-2
1.28.1-3
1.28.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1642.json"

Debian:12 / nginx

Package

Name
nginx
Purl
pkg:deb/debian/nginx?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.22.1-9+deb12u4

Affected versions

1.*
1.22.1-9
1.22.1-9+deb12u1
1.22.1-9+deb12u2
1.22.1-9+deb12u3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1642.json"

Debian:13 / nginx

Package

Name
nginx
Purl
pkg:deb/debian/nginx?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.26.3-3+deb13u2

Affected versions

1.*
1.26.3-3
1.26.3-3+deb13u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1642.json"

Debian:14 / nginx

Package

Name
nginx
Purl
pkg:deb/debian/nginx?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.28.1-3

Affected versions

1.*
1.26.3-3
1.28.0-1
1.28.0-2
1.28.0-3
1.28.0-4
1.28.0-5
1.28.0-6
1.28.1-1
1.28.1-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1642.json"