CVE-2022-46153: Routes exposed with an empty TLSOption in traefik
Vulnerability summary
CVE-2022-46153 is a high (CVSS 8.1) Improper Certificate Validation vulnerability in traefik. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 44.8% of scored vulnerabilities.
Not severe (CVSS 8.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 4Timeline
- 08-12-2022PublishedVulnerability first disclosed.
- 23-04-2025Last modifiedVulnerability information updated.
Description
Traefik is an open source HTTP reverse proxy and load balancer. In affected versions there is a potential vulnerability in Traefik managing TLS connections. A router configured with a not well-formatted TLSOption is exposed with an empty TLSOption. For instance, a route secured using an mTLS connection set with a wrong CA file is exposed without verifying the client certificates. Users are advised to upgrade to version 2.9.6. Users unable to upgrade should check their logs to detect the error messages and fix your TLS options.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · GoEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
- OSV · AlpineEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
0.53%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 0.51% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine1 product
- traefik< 2.9.6-r0
Github.com/traefik1 product
- traefikAll versions (No fix recorded)
Github.com/traefik/traefik1 product
- v2< 2.9.6
Traefik1 product
- traefik< 2.9.6
4 vendors · 4 products
References
7 links- github.com/traefik/traefik/security/advisories/GHSA-468w-8x39-gj5vX Refsource CONFIRMWEBAdvisoryMitigationPatchThird Party Advisory
- github.com/traefik/traefik/commit/7e3fe48b80083b41e9ff82a474a36484cabc701aX Refsource MISCWEBFIXPatchThird Party Advisory
- github.com/traefik/traefikPACKAGE