CVE-2020-15129
No exploitation reported by the sources we read.
- Published2020-07-30
- Fixed in2.3.0-rc3 · 2.2.8 · 1.7.26
- WeaknessCWE-601
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
In Traefik before versions 1.7.26, 2.2.8, and 2.3.0-rc3, there exists a potential open redirect vulnerability in Traefik's handling of the "X-Forwarded-Prefix" header. The Traefik API dashboard component doesn't validate that the value of the header "X-Forwarded-Prefix" is a site relative path and will redirect to any header provided URI. Successful exploitation of an open redirect can be used to entice victims to disclose sensitive information. Active Exploitation of this issue is unlikely as it would require active header injection, however the Traefik team addressed this issue nonetheless to prevent abuse in e.g. cache poisoning scenarios.
Timeline
dates in UTC- 2020-07-3016:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-15129?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-15129?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
OSV · NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2.3 | ≥ 2.3.0-rc1, < 2.3.0-rc3 | 2.3.0-rc3 | OSV |
| 2.2 | ≥ 2.2.0, < 2.2.8 | 2.2.8 | NVD |
| 2.2 | < 2.2.8 | 2.2.8 | OSV |
| 1.7 | < 1.7.26 | 1.7.26 | NVD |
| 1.x | ≥ 1.5.0-rc5, < 1.7.26 | 1.7.26 | OSV |
| 2.3 | = 2.3.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2.3 | < 2.3.0-rc6 | 2.3.0-rc6 | OSV |
| 2.3 | ≥ 2.3.0-rc1, < 2.3.0-rc6 | 2.3.0-rc6 | OSV |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 2.3 | < 2.3.0-rc6 | 2.3.0-rc6 | OSV |
| 2.3 | ≥ 2.3.0-rc1, < 2.3.0-rc6 | 2.3.0-rc6 | OSV |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Traefik to 2.3.0-rc3 · 2.2.8 · 1.7.26
Advisories and patches
- github.comPatch
- github.comPatch
- github.comRelease Notes
- github.comRelease Notes
- github.comRelease Notes
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N
- Published
- 2020-07-30
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2020-15129?
Is CVE-2020-15129 actively exploited?
What is the CVSS score for CVE-2020-15129?
Running traefik/traefik? Hear about its next vulnerability
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.