DEBIAN-CVE-2026-123609

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Source
https://security-tracker.debian.org/tracker/CVE-2026-123609
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123609.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-123609
Upstream
Published
2026-11-08T02:16:56Z
Modified
2026-11-08T10:00:15Z
Severity
  • 4.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

Rustls before 0.23.46 and 0.24.0-dev.1 before 0.24.0-dev.2 contains an information disclosure vulnerability where derived Debug formatting of client session values exposes secret key material. Custom ClientSessionStore implementations that log Tls12ClientSessionValue or Tls13ClientSessionValue can leak TLS 1.2 master secrets or TLS 1.3 resumption PSKs to log readers.

References

Affected packages

Debian:12 / rust-rustls

Package

Name
rust-rustls
Purl
pkg:deb/debian/rust-rustls?arch=source&distro=bookworm

Affected ranges

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

Affected versions

0.*
0.20.8-4
0.20.8-4.1
0.20.8-4.2
0.21.5-1
0.21.5-2
0.21.5-3
0.21.5-4
0.21.5-5
0.21.6-1
0.21.6-2
0.21.6-3
0.21.6-4
0.21.7-1
0.21.8-1
0.21.8-2
0.21.8-3
0.21.8-3.1
0.21.9-1
0.21.10-1
0.21.12-1
0.21.12-2
0.21.12-3
0.21.12-4
0.21.12-5
0.21.12-6
0.21.12-7
0.21.12-8
0.21.12-9
0.23.16-1
0.23.20+ds-1
0.23.20+ds-2
0.23.20+ds-3
0.23.20+ds-4
0.23.20+ds-5
0.23.20+ds-6
0.23.20+ds-7
0.23.20+ds-8
0.23.20+ds-9
0.23.20+ds-10
0.23.25+ds-1
0.23.26+ds-1
0.23.31+ds-1
0.23.31+ds-2
0.23.31+ds-3
0.23.31+ds-4
0.23.31+ds-5
0.23.31+ds-6
0.23.31+ds-7
0.23.32+ds-1
0.23.32+ds-2
0.23.33+ds-1
0.23.33+ds-2
0.23.33+ds-3
0.23.33+ds-4
0.23.35+ds-1
0.23.36+ds-1
0.23.37+ds-1
0.23.37+ds-2
0.23.37+ds-3
0.23.38+ds-1
0.23.40+ds-1
0.23.41+ds-1
0.23.43+ds-1
0.23.45+ds-1
0.23.46+ds-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123609.json"

Debian:13 / rust-rustls

Package

Name
rust-rustls
Purl
pkg:deb/debian/rust-rustls?arch=source&distro=trixie

Affected ranges

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

Affected versions

0.*
0.23.26+ds-1
0.23.31+ds-1
0.23.31+ds-2
0.23.31+ds-3
0.23.31+ds-4
0.23.31+ds-5
0.23.31+ds-6
0.23.31+ds-7
0.23.32+ds-1
0.23.32+ds-2
0.23.33+ds-1
0.23.33+ds-2
0.23.33+ds-3
0.23.33+ds-4
0.23.35+ds-1
0.23.36+ds-1
0.23.37+ds-1
0.23.37+ds-2
0.23.37+ds-3
0.23.38+ds-1
0.23.40+ds-1
0.23.41+ds-1
0.23.43+ds-1
0.23.45+ds-1
0.23.46+ds-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123609.json"

Debian:14 / rust-rustls

Package

Name
rust-rustls
Purl
pkg:deb/debian/rust-rustls?arch=source&distro=forky

Affected ranges

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

Affected versions

0.*
0.23.26+ds-1
0.23.31+ds-1
0.23.31+ds-2
0.23.31+ds-3
0.23.31+ds-4
0.23.31+ds-5
0.23.31+ds-6
0.23.31+ds-7
0.23.32+ds-1
0.23.32+ds-2
0.23.33+ds-1
0.23.33+ds-2
0.23.33+ds-3
0.23.33+ds-4
0.23.35+ds-1
0.23.36+ds-1
0.23.37+ds-1
0.23.37+ds-2
0.23.37+ds-3
0.23.38+ds-1
0.23.40+ds-1
0.23.41+ds-1
0.23.43+ds-1
0.23.45+ds-1
0.23.46+ds-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-123609.json"