CVE-2025-0495· NVD / CVE Program· CNA Docker

Secrets leakage to telemetry endpoint via cache backend configuration via buildx

Noroxi assessment

Priority: Monitor (action score 16/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.19% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No special conditions are required; it is repeatable.
Fixed version: azl3 docker-buildx 0.14.0-5 on Azure Linux 3.0 0.14.0-5; cbl2 moby-buildx 0.7.1-25 on CBL Mariner 2.0 0.7.1-25; cbl2 moby-buildx 0.7.1-25 on CBL-Mariner 2.0 0.7.1-25.

Low priority for now. Upgrade to azl3 docker-buildx 0.14.0-5 on Azure Linux 3.0 0.14.0-5; cbl2 moby-buildx 0.7.1-25 on CBL Mariner 2.0 0.7.1-25; cbl2 moby-buildx 0.7.1-25 on CBL-Mariner 2.0 0.7.1-25 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Buildx is a Docker CLI plugin that extends build capabilities using BuildKit. Cache backends support credentials by setting secrets directly as attribute values in cache-to/cache-from configuration. When supplied as user input, these secure values may be inadvertently captured in OpenTelemetry traces as part of the arguments and flags for the traced CLI command. OpenTelemetry traces are also saved in BuildKit daemon's history records. This vulnerability does not impact secrets passed to the Github cache backend via environment variables or registry authentication.

MediumCVSS 4.1 · v4.0—No exploit Fix available

Info leak

Published: Mar 17, 2025
Updated: Jun 17, 2026
EPSS: 0.1% · 8th percentile
CWE: CWE-532

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 16 / 40 · 4.1 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.1%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · Docker: 4.1; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (Docker). Independent of NVD's CPE analysis and usually ahead of it.

docker buildx
- up to and including 0.21.2affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:13	docker-buildx	before 0.13.1+ds1-3	0.13.1+ds1-3
Go	github.com/docker/buildx	before 0.21.3	0.21.3
openSUSE:Leap 15.6	docker	before 28.2.2_ce-150000.227.1	28.2.2_ce-150000.227.1
openSUSE:Leap 15.6	docker-stable	before 24.0.9_ce-150000.1.22.1	24.0.9_ce-150000.1.22.1
openSUSE:Leap 16.0	docker-compose	before 2.33.1-160000.5.1	2.33.1-160000.5.1
openSUSE:Tumbleweed	docker	before 27.5.1_ce-15.1	27.5.1_ce-15.1
openSUSE:Tumbleweed	docker-stable	before 24.0.9_ce-9.1	24.0.9_ce-9.1
openSUSE:Tumbleweed	govulncheck-vulndb	before 0.0.20250318T181448-1.1	0.0.20250318T181448-1.1
SUSE:Linux Enterprise Micro 5.3	docker	before 28.2.2_ce-150000.227.1	28.2.2_ce-150000.227.1
SUSE:Linux Enterprise Module for Containers 15 SP6	docker-stable	before 24.0.9_ce-150000.1.22.1	24.0.9_ce-150000.1.22.1
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5	docker	before 27.5.1_ce-98.129.1	27.5.1_ce-98.129.1
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5	docker-stable	before 24.0.9_ce-1.14.1	24.0.9_ce-1.14.1
SUSE:Linux Micro 6.0	docker	before 27.5.1_ce-2.1	27.5.1_ce-2.1
SUSE:Linux Micro 6.0	docker-compose	before 2.33.1-5.1	2.33.1-5.1
SUSE:Linux Micro 6.1	docker	before 27.5.1_ce-slfo.1.1_2.1	27.5.1_ce-slfo.1.1_2.1
SUSE:Linux Micro 6.1	docker-compose	before 2.33.1-slfo.1.1_3.1	2.33.1-slfo.1.1_3.1
SUSE:Linux Micro 6.2	docker-compose	before 2.33.1-160000.5.1	2.33.1-160000.5.1

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
azl3 docker-buildx 0.14.0-5 on Azure Linux 3.0	0.14.0-5 · CBL-Mariner Releases	Microsoft (MSRC)
cbl2 moby-buildx 0.7.1-25 on CBL Mariner 2.0	0.7.1-25 · CBL-Mariner Releases	Microsoft (MSRC)
cbl2 moby-buildx 0.7.1-25 on CBL-Mariner 2.0	0.7.1-25 · CBL-Mariner Releases	Microsoft (MSRC)
debian:docker-buildx	0.13.1+ds1-3 · Debian:13	Package registry (OSV)
Go:github.com/docker/buildx	0.21.3	Package registry (OSV)
opensuse:docker	28.2.2_ce-150000.227.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:docker-compose	2.33.1-160000.5.1 · openSUSE:Leap 16.0	Package registry (OSV)
opensuse:docker-stable	24.0.9_ce-150000.1.22.1 · openSUSE:Leap 15.6	Package registry (OSV)
opensuse:govulncheck-vulndb	0.0.20250318T181448-1.1 · openSUSE:Tumbleweed	Package registry (OSV)
suse:docker	28.2.2_ce-150000.227.1 · SUSE:Linux Enterprise Micro 5.3	Package registry (OSV)
suse:docker-compose	2.33.1-160000.5.1 · SUSE:Linux Micro 6.2	Package registry (OSV)
suse:docker-stable	24.0.9_ce-150000.1.22.1 · SUSE:Linux Enterprise Module for Containers 15 SP6	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: P
Scope: X

Weakness class (CWE)

CWE-532 · Insertion of Sensitive Information into Log File

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:H/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

nvd-secondary