Dashboard / CVE-2026-123609

CVE-2026-123609

MEDIUM
MEDIUM Priority: 0.00 BB Relevance: 8/100
Published: 2026-11-08 Modified: 2026-11-12 First seen: 2026-11-08 Status: active

Attack Surface

Conf. Impact

CVSS Vector Breakdown

AV: Local
AC: High
PR: High
UI: Passive
S: X
AT: Present
VC: High
VI: None
VA: None

Description

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.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
rustls rustls 0 < 0.23.46
rustls rustls 0.24.0-dev.1 < 0.24.0-dev.2
rustls rustls 0 < 0.23.46
rustls rustls 0.24.0-dev.1 < 0.24.0-dev.2

References & Advisories (2)

Bug Bounty Relevance

8 / 100

CVSS Score

4.1 / 10.0 v4.0
CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:P/VC:H/VI:N/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

EPSS — Exploitation Probability

0.10%
Raw Score 0.001010
Percentile 0.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00101
2026-11-12
0.00101
2026-11-10
0.00101
2026-11-09
0.00101
2026-11-08
0.00101

Intelligence Sources

mitre ref →
nvd ref →

External Links