Improper Cross-boundary Removal of Sensitive Data Affecting rust-rustls package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.1% (1st percentile)

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  • Snyk IDSNYK-DEBIAN14-RUSTRUSTLS-22345977
  • published8 Nov 2026
  • disclosed8 Nov 2026

Introduced: 8 Nov 2026

NewCVE-2026-123609  (opens in a new tab)
CWE-212  (opens in a new tab)

How to fix?

There is no fixed version for Debian:14 rust-rustls.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rust-rustls package and not the rust-rustls package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1