CVE-2026-6253 | BDVDB-2026-332864 Detail

Description#

curl might erroneously pass on credentials for a first proxy to a second proxy. This can happen when the following conditions are true: 1. curl is setup to use specific different proxies for different URL schemes 2. the first proxy needs credentials 3. the second proxy uses no credentials 4. while using the first proxy (using say `http://`), curl is asked to follow a redirect to a URL using another scheme (say `https://`), accessed using a second, different, proxy

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-05-13Record published in the CVE List.
2. Version 22026-09-15Most recent update recorded in the CVE List.