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Fencer Intel
high 7.5

CVE-2019-12452 json

Containous Traefik Exposes Password Hashes

published 7y ago modified 4mo ago also GHSA-r3fq-cmmw-cpmm , GO-2023-1919 , EUVD-2022-5080

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

types/types.go in Containous Traefik 1.7.x through 1.7.11, when the --api flag is used and the API is publicly reachable and exposed without sufficient access control (which is contrary to the API documentation), allows remote authenticated users to discover password hashes by reading the Basic HTTP Authentication or Digest HTTP Authentication section, or discover a key by reading the ClientTLS section. These can be found in the JSON response to a /api request.

Patch / fix

  • go github.com/traefik/traefik 1.7.12

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Exploit prediction

2.54% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/containous/traefik/pull/4918 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/containous/traefik/issues/4917 referenced PoC, tagged "exploit" by a source, unverified
  • docs.traefik.io https://docs.traefik.io/configuration/api/#security referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:P/I:N/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/traefik/traefik
>=1.7.0, <1.7.12
1.7.12

Classification

Weakness
  • CWE-522 Insufficiently Protected Credentials

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.