Dashboard / CVE-2026-97209

CVE-2026-97209

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 26/100
Published: 2026-10-30 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Low Complexity Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: Passive
S: X
AT: Present
VC: High
VI: High
VA: High

Description

Insecure Temporary File vulnerability in Mix deps.partition in Elixir allows a local user to execute code as another user via a swapped partition config file. Partitioned dependency compilation passes the project configuration to each partition VM through a file in a fixed-name directory under the shared system temporary directory, and the partition trusts what it reads back. Another local user on the same host can exploit this during a mix deps.compile run that uses partitioned compilation. Mix.Tasks.Deps.Partition.server/4 in lib/mix/lib/mix/tasks/deps.partition.ex creates the directory with File.mkdir_p/1, which accepts an existing directory without checking its owner, so a user who created it first can replace the file before client/0 reads it. This issue affects mix: from 1.20.0-rc.4 before 1.20.5.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
elixir-lang elixir 1.20.0-rc.4 < 1.20.5
elixir-lang elixir 7f3d95b60c28ae3026a5c1bf943166391245bfd1 < *
elixir-lang elixir 1.20.0-rc.4 < 1.20.5
elixir-lang elixir 7f3d95b60c28ae3026a5c1bf943166391245bfd1 < *

References & Advisories (6)

Bug Bounty Relevance

26 / 100
✓ Low complexity

CVSS Score

5.4 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/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

0.11%
Raw Score 0.001150
Percentile 1.5%
Date 2026-11-02

EPSS Trend

2026-11-02
0.00115
2026-11-01
0.00115
2026-10-31
0.00115
2026-10-30
0.00115

Intelligence Sources

mitre ref →
nvd ref →

External Links