CVE-2020-9321

mediumpriority · track · 30EPSS 0.007 · 54 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.74% (54th) EPSS

CVSS 5 · medium

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the purging of certificate contents from providers before logging.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:Csecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-295USprimaryCWE-200USCWE-295US

affected products (7)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
traefik traefik2.0.0 → 2.1.4nvdUScpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*
traefik traefik enterprise= 2.0.0nvdUScpe:2.3:a:traefik:traefik_enterprise:*:*:*:*:*:*:*:*
Go github.com/containous/traefikall versionsosvUSpkg:golang/github.com/containous/traefik
Go github.com/containous/traefik/v2< 2.1.4osvUSpkg:golang/github.com/containous/traefik/v2
Go github.com/traefik/traefikall versionsosvUSpkg:golang/github.com/traefik/traefik
Go github.com/traefik/traefik< 2.1.4osvUSpkg:golang/github.com/traefik/traefik

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-7h6j-2268-fhcmTraefik has an Improper Certificate Handling issue2021-09-02ghsa · osvUS
configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the purging of certificate contents from providers before logging.
GO-2022-0808Improper Certificate Handling in github.com/containous/traefik2024-08-21vendor · osvUS
Improper Certificate Handling in github.com/containous/traefik

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2020-03-16modified 2026-06-17

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+1889 more

references (7)

External citations — patches, advisories, analysis.

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