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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-3783

token leak with redirect and netrc

Description

When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances. If the hostname that the first request is redirected to has information in the used .netrc file, with either of the `machine` or `default` keywords, curl would pass on the bearer token set for the first host also to the second one.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

curl curl

Default version status: unaffected

  • 7.33.0 to < 8.14.2affected
  • 8.15.0 to < 8.16.1affected
  • 8.17.0 to < 8.19.0affected

curl curl

Default version status: unaffected

  • 06c1bea72faabb6fad4b7ef818aafaa336c9a7aa to < e3d7401a32a46516c9e5ee877e613e62ed35bddcaffected

curl curl

Default version status: unaffected

  • 8.18.0affected
  • 8.17.0affected
  • 8.16.0affected
  • 8.15.0affected
  • 8.14.1affected
  • 8.14.0affected
  • 8.13.0affected
  • 8.12.1affected
  • 8.12.0affected
  • 8.11.1affected
  • 8.11.0affected
  • 8.10.1affected
  • 8.10.0affected
  • 8.9.1affected
  • 8.9.0affected
  • 8.8.0affected
  • 8.7.1affected
  • 8.7.0affected
  • 8.6.0affected
  • 8.5.0affected
  • 8.4.0affected
  • 8.3.0affected
  • 8.2.1affected
  • 8.2.0affected
  • 8.1.2affected
  • 8.1.1affected
  • 8.1.0affected
  • 8.0.1affected
  • 8.0.0affected
  • 7.88.1affected
  • 7.88.0affected
  • 7.87.0affected
  • 7.86.0affected
  • 7.85.0affected
  • 7.84.0affected
  • 7.83.1affected
  • 7.83.0affected
  • 7.82.0affected
  • 7.81.0affected
  • 7.80.0affected
  • 7.79.1affected
  • 7.79.0affected
  • 7.78.0affected
  • 7.77.0affected
  • 7.76.1affected
  • 7.76.0affected
  • 7.75.0affected
  • 7.74.0affected
  • 7.73.0affected
  • 7.72.0affected
  • 7.71.1affected
  • 7.71.0affected
  • 7.70.0affected
  • 7.69.1affected
  • 7.69.0affected
  • 7.68.0affected
  • 7.67.0affected
  • 7.66.0affected
  • 7.65.3affected
  • 7.65.2affected
  • 7.65.1affected
  • 7.65.0affected
  • 7.64.1affected
  • 7.64.0affected
  • 7.63.0affected
  • 7.62.0affected
  • 7.61.1affected
  • 7.61.0affected
  • 7.60.0affected
  • 7.59.0affected
  • 7.58.0affected
  • 7.57.0affected
  • 7.56.1affected
  • 7.56.0affected
  • 7.55.1affected
  • 7.55.0affected
  • 7.54.1affected
  • 7.54.0affected
  • 7.53.1affected
  • 7.53.0affected
  • 7.52.1affected
  • 7.52.0affected
  • 7.51.0affected
  • 7.50.3affected
  • 7.50.2affected
  • 7.50.1affected
  • 7.50.0affected
  • 7.49.1affected
  • 7.49.0affected
  • 7.48.0affected
  • 7.47.1affected
  • 7.47.0affected
  • 7.46.0affected
  • 7.45.0affected
  • 7.44.0affected
  • 7.43.0affected
  • 7.42.1affected
  • 7.42.0affected
  • 7.41.0affected
  • 7.40.0affected
  • 7.39.0affected
  • 7.38.0affected
  • 7.37.1affected
  • 7.37.0affected
  • 7.36.0affected
  • 7.35.0affected
  • 7.34.0affected
  • 7.33.0affected

References