CVE-2019-12439

HIGH
MEDIUM Priority: 0.05 BB Relevance: 41/100
Published: 2019-05-29 Modified: 2026-11-02 First seen: 2026-11-02 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

Description

bubblewrap.c in Bubblewrap before 0.3.3 misuses temporary directories in /tmp as a mount point. In some particular configurations (related to XDG_RUNTIME_DIR), a local attacker may abuse this flaw to prevent other users from executing bubblewrap or potentially execute code.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
n/a n/a n/a
projectatomic bubblewrap < 0.3.3

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.0
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.58%
Raw Score 0.005790
Percentile 48.2%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00579
2026-11-12
0.00579
2026-11-10
0.00575
2026-11-09
0.00575
2026-11-08
0.00575
2026-11-07
0.00575
2026-11-06
0.00575
2026-11-05
0.00575
2026-11-04
0.00575
2026-11-03
0.00575
2026-11-02
0.00575

Intelligence Sources

mitre ref →
nvd ref →