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Credentials Management Affecting curl package, versions <7.51.0-1

Severity

 Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
3.55% (88th percentile)

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  • Snyk IDSNYK-DEBIAN14-CURL-11740074
  • published10 Aug 2025
  • disclosed1 Aug 2018
Report a new vulnerability Found a mistake?

Introduced: 1 Aug 2018

CVE-2016-8616  (opens in a new tab)
CWE-255  (opens in a new tab)

How to fix?

Upgrade Debian:14 curl to version 7.51.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

A flaw was found in curl before version 7.51.0 When re-using a connection, curl was doing case insensitive comparisons of user name and password with the existing connections. This means that if an unused connection with proper credentials exists for a protocol that has connection-scoped credentials, an attacker can cause that connection to be reused if s/he knows the case-insensitive version of the correct password.