Riskcovery

CVE-2026-3784

wrong proxy connection reuse with credentials

State
Published
Severity
6.5 Medium
Published
Mar 11, 2026
Updated
Sep 15, 2026
Reserved
Mar 8, 2026

Read the record on cve.org

Description

curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection.

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NCISA-ADP

Weaknesses

  • CWE-305 Authentication Bypass by Primary Weakness

Affected Products

ProductVersions
curlcurl
  • 7.7.0 to before 8.14.2Affected
  • 8.15.0 to before 8.16.1Affected
  • 8.17.0 to before 8.19.0Affected
curlcurl
  • a1d6ad26100bc493c7b04f1301b1634b7f5aa8b4 to before 5f13a7645e565c5c1a06f3ef86e97afb856fb364Affected
curlcurl
  • 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
  • and 166 more versions

References

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