Dashboard / CVE-2026-121522

CVE-2026-121522

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 38/100
Published: 2026-11-03 Modified: 2026-11-06 First seen: 2026-11-03 Status: active

Attack Surface

Low Complexity No Auth

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Active
S: X
AT: None
VC: None
VI: None
VA: High

Description

In BuildKit versions v0.26.0 through v0.34.1, a specific build definition that resolves metadata for the same Git source reference twice can cause the BuildKit daemon to panic and crash, interrupting builds handled by that daemon. The issue is fixed in v0.34.2.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
moby BuildKit 0.26.0 < 0.34.2
moby BuildKit 0.26.0 < 0.34.2

References & Advisories (1)

Bug Bounty Relevance

38 / 100
✓ No authentication
✓ Low complexity

CVSS Score

6.7 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/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

0.12%
Raw Score 0.001180
Percentile 1.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00118
2026-11-12
0.00118
2026-11-10
0.00118
2026-11-09
0.00118
2026-11-08
0.00118
2026-11-07
0.00118
2026-11-06
0.00118
2026-11-05
0.00118
2026-11-04
0.00118

Intelligence Sources

mitre ref →
nvd ref →

External Links