ALPINE-CVE-2026-3783

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-3783
Published: 11 Mar 2026, 11:16
Last modified:08 Jul 2026, 04:31

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

11 Mar 2026, 11:16
Published
Vulnerability first disclosed
08 Jul 2026, 04:31
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Systems

  • alpine•curl

    < 8.19.0-r0 | < 8.19.0-r0 | ≥ 7.33.0, < 8.19.0-r0 | ≥ 7.33.0, < 8.19.0-r0

References (1)