CVE-2026-6429: curl · Information Exposure
Affects curlSource GCVE Database
Not known to be exploited · CVSS 5.3 Medium.
Data as of 11 Nov 2026, 23:18 UTC
Thin evidence
One scorer or none| CISA-ADP | CVSS 3.1 | 5.3 |
|---|
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 13 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| curl curl | Affected
| Fixed in– |
AI-suggested
Until a fix is available, users should avoid configurations that combine .netrc credential usage with automatic HTTP redirects or consider alternative authentication methods. Monitoring vendor channels for updates is recommended.
Description
CVE-2026-6429 is a vulnerability in the curl library where using a .netrc file for credentials combined with following HTTP redirects can cause the password for the initial host to be leaked to the redirected host under certain conditions. This exposure of sensitive information can occur without user interaction and affects specific curl versions.