CVE-2026-6253
EUVD-2026-2992713.05.2026, 13:01
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, proxyEnginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| haxx | curl | 7.14.1 ≤ 𝑥 < 8.20.0 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| curl | curl | 𝑥 ≤ 8.19.0 | CNA |
| curl | curl | 𝑥 ≤ 8.18.0 | CNA |
| curl | curl | 𝑥 ≤ 8.17.0 | CNA |
| curl | curl | 𝑥 ≤ 8.16.0 | CNA |
| curl | curl | 𝑥 ≤ 8.15.0 | CNA |
| curl | curl | 𝑥 ≤ 8.14.1 | CNA |
| curl | curl | 𝑥 ≤ 8.14.0 | CNA |
| curl | curl | 𝑥 ≤ 8.13.0 | CNA |
| curl | curl | 𝑥 ≤ 8.12.1 | CNA |
| curl | curl | 𝑥 ≤ 8.12.0 | CNA |
| curl | curl | 𝑥 ≤ 8.11.1 | CNA |
| curl | curl | 𝑥 ≤ 8.11.0 | CNA |
| curl | curl | 𝑥 ≤ 8.10.1 | CNA |
| curl | curl | 𝑥 ≤ 8.10.0 | CNA |
| curl | curl | 𝑥 ≤ 8.9.1 | CNA |
| curl | curl | 𝑥 ≤ 8.9.0 | CNA |
| curl | curl | 𝑥 ≤ 8.8.0 | CNA |
| curl | curl | 𝑥 ≤ 8.7.1 | CNA |
| curl | curl | 𝑥 ≤ 8.7.0 | CNA |
| curl | curl | 𝑥 ≤ 8.6.0 | CNA |
| curl | curl | 𝑥 ≤ 8.5.0 | CNA |
| curl | curl | 𝑥 ≤ 8.4.0 | CNA |
| curl | curl | 𝑥 ≤ 8.3.0 | CNA |
| curl | curl | 𝑥 ≤ 8.2.1 | CNA |
| curl | curl | 𝑥 ≤ 8.2.0 | CNA |
| curl | curl | 𝑥 ≤ 8.1.2 | CNA |
| curl | curl | 𝑥 ≤ 8.1.1 | CNA |
| curl | curl | 𝑥 ≤ 8.1.0 | CNA |
| curl | curl | 𝑥 ≤ 8.0.1 | CNA |
| curl | curl | 𝑥 ≤ 8.0.0 | CNA |
| curl | curl | 𝑥 ≤ 7.88.1 | CNA |
| curl | curl | 𝑥 ≤ 7.88.0 | CNA |
| curl | curl | 𝑥 ≤ 7.87.0 | CNA |
| curl | curl | 𝑥 ≤ 7.86.0 | CNA |
| curl | curl | 𝑥 ≤ 7.85.0 | CNA |
| curl | curl | 𝑥 ≤ 7.84.0 | CNA |
| curl | curl | 𝑥 ≤ 7.83.1 | CNA |
| curl | curl | 𝑥 ≤ 7.83.0 | CNA |
| curl | curl | 𝑥 ≤ 7.82.0 | CNA |
| curl | curl | 𝑥 ≤ 7.81.0 | CNA |
| curl | curl | 𝑥 ≤ 7.80.0 | CNA |
| curl | curl | 𝑥 ≤ 7.79.1 | CNA |
| curl | curl | 𝑥 ≤ 7.79.0 | CNA |
| curl | curl | 𝑥 ≤ 7.78.0 | CNA |
| curl | curl | 𝑥 ≤ 7.77.0 | CNA |
| curl | curl | 𝑥 ≤ 7.76.1 | CNA |
| curl | curl | 𝑥 ≤ 7.76.0 | CNA |
| curl | curl | 𝑥 ≤ 7.75.0 | CNA |
| curl | curl | 𝑥 ≤ 7.74.0 | CNA |
| curl | curl | 𝑥 ≤ 7.73.0 | CNA |
| curl | curl | 𝑥 ≤ 7.72.0 | CNA |
| curl | curl | 𝑥 ≤ 7.71.1 | CNA |
| curl | curl | 𝑥 ≤ 7.71.0 | CNA |
| curl | curl | 𝑥 ≤ 7.70.0 | CNA |
| curl | curl | 𝑥 ≤ 7.69.1 | CNA |
| curl | curl | 𝑥 ≤ 7.69.0 | CNA |
| curl | curl | 𝑥 ≤ 7.68.0 | CNA |
| curl | curl | 𝑥 ≤ 7.67.0 | CNA |
| curl | curl | 𝑥 ≤ 7.66.0 | CNA |
| curl | curl | 𝑥 ≤ 7.65.3 | CNA |
| curl | curl | 𝑥 ≤ 7.65.2 | CNA |
| curl | curl | 𝑥 ≤ 7.65.1 | CNA |
| curl | curl | 𝑥 ≤ 7.65.0 | CNA |
| curl | curl | 𝑥 ≤ 7.64.1 | CNA |
| curl | curl | 𝑥 ≤ 7.64.0 | CNA |
| curl | curl | 𝑥 ≤ 7.63.0 | CNA |
| curl | curl | 𝑥 ≤ 7.62.0 | CNA |
| curl | curl | 𝑥 ≤ 7.61.1 | CNA |
| curl | curl | 𝑥 ≤ 7.61.0 | CNA |
| curl | curl | 𝑥 ≤ 7.60.0 | CNA |
| curl | curl | 𝑥 ≤ 7.59.0 | CNA |
| curl | curl | 𝑥 ≤ 7.58.0 | CNA |
| curl | curl | 𝑥 ≤ 7.57.0 | CNA |
| curl | curl | 𝑥 ≤ 7.56.1 | CNA |
| curl | curl | 𝑥 ≤ 7.56.0 | CNA |
| curl | curl | 𝑥 ≤ 7.55.1 | CNA |
| curl | curl | 𝑥 ≤ 7.55.0 | CNA |
| curl | curl | 𝑥 ≤ 7.54.1 | CNA |
| curl | curl | 𝑥 ≤ 7.54.0 | CNA |
| curl | curl | 𝑥 ≤ 7.53.1 | CNA |
| curl | curl | 𝑥 ≤ 7.53.0 | CNA |
| curl | curl | 𝑥 ≤ 7.52.1 | CNA |
| curl | curl | 𝑥 ≤ 7.52.0 | CNA |
| curl | curl | 𝑥 ≤ 7.51.0 | CNA |
| curl | curl | 𝑥 ≤ 7.50.3 | CNA |
| curl | curl | 𝑥 ≤ 7.50.2 | CNA |
| curl | curl | 𝑥 ≤ 7.50.1 | CNA |
| curl | curl | 𝑥 ≤ 7.50.0 | CNA |
| curl | curl | 𝑥 ≤ 7.49.1 | CNA |
| curl | curl | 𝑥 ≤ 7.49.0 | CNA |
| curl | curl | 𝑥 ≤ 7.48.0 | CNA |
| curl | curl | 𝑥 ≤ 7.47.1 | CNA |
| curl | curl | 𝑥 ≤ 7.47.0 | CNA |
| curl | curl | 𝑥 ≤ 7.46.0 | CNA |
| curl | curl | 𝑥 ≤ 7.45.0 | CNA |
| curl | curl | 𝑥 ≤ 7.44.0 | CNA |
| curl | curl | 𝑥 ≤ 7.43.0 | CNA |
| curl | curl | 𝑥 ≤ 7.42.1 | CNA |
| curl | curl | 𝑥 ≤ 7.42.0 | CNA |
| curl | curl | 𝑥 ≤ 7.41.0 | CNA |
| curl | curl | 𝑥 ≤ 7.40.0 | CNA |
| curl | curl | 𝑥 ≤ 7.39.0 | CNA |
| curl | curl | 𝑥 ≤ 7.38.0 | CNA |
| curl | curl | 𝑥 ≤ 7.37.1 | CNA |
| curl | curl | 𝑥 ≤ 7.37.0 | CNA |
| curl | curl | 𝑥 ≤ 7.36.0 | CNA |
| curl | curl | 𝑥 ≤ 7.35.0 | CNA |
| curl | curl | 𝑥 ≤ 7.34.0 | CNA |
| curl | curl | 𝑥 ≤ 7.33.0 | CNA |
| curl | curl | 𝑥 ≤ 7.32.0 | CNA |
| curl | curl | 𝑥 ≤ 7.31.0 | CNA |
| curl | curl | 𝑥 ≤ 7.30.0 | CNA |
| curl | curl | 𝑥 ≤ 7.29.0 | CNA |
| curl | curl | 𝑥 ≤ 7.28.1 | CNA |
| curl | curl | 𝑥 ≤ 7.28.0 | CNA |
| curl | curl | 𝑥 ≤ 7.27.0 | CNA |
| curl | curl | 𝑥 ≤ 7.26.0 | CNA |
| curl | curl | 𝑥 ≤ 7.25.0 | CNA |
| curl | curl | 𝑥 ≤ 7.24.0 | CNA |
| curl | curl | 𝑥 ≤ 7.23.1 | CNA |
| curl | curl | 𝑥 ≤ 7.23.0 | CNA |
| curl | curl | 𝑥 ≤ 7.22.0 | CNA |
| curl | curl | 𝑥 ≤ 7.21.7 | CNA |
| curl | curl | 𝑥 ≤ 7.21.6 | CNA |
| curl | curl | 𝑥 ≤ 7.21.5 | CNA |
| curl | curl | 𝑥 ≤ 7.21.4 | CNA |
| curl | curl | 𝑥 ≤ 7.21.3 | CNA |
| curl | curl | 𝑥 ≤ 7.21.2 | CNA |
| curl | curl | 𝑥 ≤ 7.21.1 | CNA |
| curl | curl | 𝑥 ≤ 7.21.0 | CNA |
| curl | curl | 𝑥 ≤ 7.20.1 | CNA |
| curl | curl | 𝑥 ≤ 7.20.0 | CNA |
| curl | curl | 𝑥 ≤ 7.19.7 | CNA |
| curl | curl | 𝑥 ≤ 7.19.6 | CNA |
| curl | curl | 𝑥 ≤ 7.19.5 | CNA |
| curl | curl | 𝑥 ≤ 7.19.4 | CNA |
| curl | curl | 𝑥 ≤ 7.19.3 | CNA |
| curl | curl | 𝑥 ≤ 7.19.2 | CNA |
| curl | curl | 𝑥 ≤ 7.19.1 | CNA |
| curl | curl | 𝑥 ≤ 7.19.0 | CNA |
| curl | curl | 𝑥 ≤ 7.18.2 | CNA |
| curl | curl | 𝑥 ≤ 7.18.1 | CNA |
| curl | curl | 𝑥 ≤ 7.18.0 | CNA |
| curl | curl | 𝑥 ≤ 7.17.1 | CNA |
| curl | curl | 𝑥 ≤ 7.17.0 | CNA |
| curl | curl | 𝑥 ≤ 7.16.4 | CNA |
| curl | curl | 𝑥 ≤ 7.16.3 | CNA |
| curl | curl | 𝑥 ≤ 7.16.2 | CNA |
| curl | curl | 𝑥 ≤ 7.16.1 | CNA |
| curl | curl | 𝑥 ≤ 7.16.0 | CNA |
| curl | curl | 𝑥 ≤ 7.15.5 | CNA |
| curl | curl | 𝑥 ≤ 7.15.4 | CNA |
| curl | curl | 𝑥 ≤ 7.15.3 | CNA |
| curl | curl | 𝑥 ≤ 7.15.2 | CNA |
| curl | curl | 𝑥 ≤ 7.15.1 | CNA |
| curl | curl | 𝑥 ≤ 7.15.0 | CNA |
| curl | curl | 𝑥 ≤ 7.14.1 | CNA |
Debian Releases
Ubuntu Releases
openSUSE / SLES Releases
openSUSE Product | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| curl |
| ||||||||||
| libcurl-devel |
| ||||||||||
| libcurl4 |
| ||||||||||
| libcurl4-32bit |
|
Azure Linux Releases
Common Weakness Enumeration