CVE-2026-8927
EUVD-2026-4150803.07.2026, 07:16
When reusing a libcurl handle for sequential transfers driven by environment-variable proxy configuration, libcurl fails to clear the proxy authentication state between requests. Specifically, if the initial transfer authenticates against `proxyA` using Digest auth, a subsequent transfer routed through `proxyB` erroneously leaks the `Proxy-Authorization:` header intended solely for `proxyA`.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| haxx | curl | 7.12.0 ≤ 𝑥 < 8.21.0 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| curl | curl | 7.12.0 ≤ 𝑥 < 8.14.2 | CNA |
| curl | curl | 8.15.0 ≤ 𝑥 < 8.16.1 | CNA |
| curl | curl | 8.17.0 ≤ 𝑥 < 8.20.1 | CNA |
| curl | curl | 8.20.0 | CNA |
| curl | curl | 8.19.0 | CNA |
| curl | curl | 8.18.0 | CNA |
| curl | curl | 8.17.0 | CNA |
| curl | curl | 8.16.0 | CNA |
| curl | curl | 8.15.0 | CNA |
| curl | curl | 8.14.1 | CNA |
| curl | curl | 8.14.0 | CNA |
| curl | curl | 8.13.0 | CNA |
| curl | curl | 8.12.1 | CNA |
| curl | curl | 8.12.0 | CNA |
| curl | curl | 8.11.1 | CNA |
| curl | curl | 8.11.0 | CNA |
| curl | curl | 8.10.1 | CNA |
| curl | curl | 8.10.0 | CNA |
| curl | curl | 8.9.1 | CNA |
| curl | curl | 8.9.0 | CNA |
| curl | curl | 8.8.0 | CNA |
| curl | curl | 8.7.1 | CNA |
| curl | curl | 8.7.0 | CNA |
| curl | curl | 8.6.0 | CNA |
| curl | curl | 8.5.0 | CNA |
| curl | curl | 8.4.0 | CNA |
| curl | curl | 8.3.0 | CNA |
| curl | curl | 8.2.1 | CNA |
| curl | curl | 8.2.0 | CNA |
| curl | curl | 8.1.2 | CNA |
| curl | curl | 8.1.1 | CNA |
| curl | curl | 8.1.0 | CNA |
| curl | curl | 8.0.1 | CNA |
| curl | curl | 8.0.0 | CNA |
| curl | curl | 7.88.1 | CNA |
| curl | curl | 7.88.0 | CNA |
| curl | curl | 7.87.0 | CNA |
| curl | curl | 7.86.0 | CNA |
| curl | curl | 7.85.0 | CNA |
| curl | curl | 7.84.0 | CNA |
| curl | curl | 7.83.1 | CNA |
| curl | curl | 7.83.0 | CNA |
| curl | curl | 7.82.0 | CNA |
| curl | curl | 7.81.0 | CNA |
| curl | curl | 7.80.0 | CNA |
| curl | curl | 7.79.1 | CNA |
| curl | curl | 7.79.0 | CNA |
| curl | curl | 7.78.0 | CNA |
| curl | curl | 7.77.0 | CNA |
| curl | curl | 7.76.1 | CNA |
| curl | curl | 7.76.0 | CNA |
| curl | curl | 7.75.0 | CNA |
| curl | curl | 7.74.0 | CNA |
| curl | curl | 7.73.0 | CNA |
| curl | curl | 7.72.0 | CNA |
| curl | curl | 7.71.1 | CNA |
| curl | curl | 7.71.0 | CNA |
| curl | curl | 7.70.0 | CNA |
| curl | curl | 7.69.1 | CNA |
| curl | curl | 7.69.0 | CNA |
| curl | curl | 7.68.0 | CNA |
| curl | curl | 7.67.0 | CNA |
| curl | curl | 7.66.0 | CNA |
| curl | curl | 7.65.3 | CNA |
| curl | curl | 7.65.2 | CNA |
| curl | curl | 7.65.1 | CNA |
| curl | curl | 7.65.0 | CNA |
| curl | curl | 7.64.1 | CNA |
| curl | curl | 7.64.0 | CNA |
| curl | curl | 7.63.0 | CNA |
| curl | curl | 7.62.0 | CNA |
| curl | curl | 7.61.1 | CNA |
| curl | curl | 7.61.0 | CNA |
| curl | curl | 7.60.0 | CNA |
| curl | curl | 7.59.0 | CNA |
| curl | curl | 7.58.0 | CNA |
| curl | curl | 7.57.0 | CNA |
| curl | curl | 7.56.1 | CNA |
| curl | curl | 7.56.0 | CNA |
| curl | curl | 7.55.1 | CNA |
| curl | curl | 7.55.0 | CNA |
| curl | curl | 7.54.1 | CNA |
| curl | curl | 7.54.0 | CNA |
| curl | curl | 7.53.1 | CNA |
| curl | curl | 7.53.0 | CNA |
| curl | curl | 7.52.1 | CNA |
| curl | curl | 7.52.0 | CNA |
| curl | curl | 7.51.0 | CNA |
| curl | curl | 7.50.3 | CNA |
| curl | curl | 7.50.2 | CNA |
| curl | curl | 7.50.1 | CNA |
| curl | curl | 7.50.0 | CNA |
| curl | curl | 7.49.1 | CNA |
| curl | curl | 7.49.0 | CNA |
| curl | curl | 7.48.0 | CNA |
| curl | curl | 7.47.1 | CNA |
| curl | curl | 7.47.0 | CNA |
| curl | curl | 7.46.0 | CNA |
| curl | curl | 7.45.0 | CNA |
| curl | curl | 7.44.0 | CNA |
| curl | curl | 7.43.0 | CNA |
| curl | curl | 7.42.1 | CNA |
| curl | curl | 7.42.0 | CNA |
| curl | curl | 7.41.0 | CNA |
| curl | curl | 7.40.0 | CNA |
| curl | curl | 7.39.0 | CNA |
| curl | curl | 7.38.0 | CNA |
| curl | curl | 7.37.1 | CNA |
| curl | curl | 7.37.0 | CNA |
| curl | curl | 7.36.0 | CNA |
| curl | curl | 7.35.0 | CNA |
| curl | curl | 7.34.0 | CNA |
| curl | curl | 7.33.0 | CNA |
| curl | curl | 7.32.0 | CNA |
| curl | curl | 7.31.0 | CNA |
| curl | curl | 7.30.0 | CNA |
| curl | curl | 7.29.0 | CNA |
| curl | curl | 7.28.1 | CNA |
| curl | curl | 7.28.0 | CNA |
| curl | curl | 7.27.0 | CNA |
| curl | curl | 7.26.0 | CNA |
| curl | curl | 7.25.0 | CNA |
| curl | curl | 7.24.0 | CNA |
| curl | curl | 7.23.1 | CNA |
| curl | curl | 7.23.0 | CNA |
| curl | curl | 7.22.0 | CNA |
| curl | curl | 7.21.7 | CNA |
| curl | curl | 7.21.6 | CNA |
| curl | curl | 7.21.5 | CNA |
| curl | curl | 7.21.4 | CNA |
| curl | curl | 7.21.3 | CNA |
| curl | curl | 7.21.2 | CNA |
| curl | curl | 7.21.1 | CNA |
| curl | curl | 7.21.0 | CNA |
| curl | curl | 7.20.1 | CNA |
| curl | curl | 7.20.0 | CNA |
| curl | curl | 7.19.7 | CNA |
| curl | curl | 7.19.6 | CNA |
| curl | curl | 7.19.5 | CNA |
| curl | curl | 7.19.4 | CNA |
| curl | curl | 7.19.3 | CNA |
| curl | curl | 7.19.2 | CNA |
| curl | curl | 7.19.1 | CNA |
| curl | curl | 7.19.0 | CNA |
| curl | curl | 7.18.2 | CNA |
| curl | curl | 7.18.1 | CNA |
| curl | curl | 7.18.0 | CNA |
| curl | curl | 7.17.1 | CNA |
| curl | curl | 7.17.0 | CNA |
| curl | curl | 7.16.4 | CNA |
| curl | curl | 7.16.3 | CNA |
| curl | curl | 7.16.2 | CNA |
| curl | curl | 7.16.1 | CNA |
| curl | curl | 7.16.0 | CNA |
| curl | curl | 7.15.5 | CNA |
| curl | curl | 7.15.4 | CNA |
| curl | curl | 7.15.3 | CNA |
| curl | curl | 7.15.2 | CNA |
| curl | curl | 7.15.1 | CNA |
| curl | curl | 7.15.0 | CNA |
| curl | curl | 7.14.1 | CNA |
| curl | curl | 7.14.0 | CNA |
| curl | curl | 7.13.2 | CNA |
| curl | curl | 7.13.1 | CNA |
| curl | curl | 7.13.0 | CNA |
| curl | curl | 7.12.3 | CNA |
| curl | curl | 7.12.2 | CNA |
| curl | curl | 7.12.1 | CNA |
| curl | curl | 7.12.0 | CNA |
Debian Releases
Ubuntu Releases
Ubuntu Product | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl |
|
openSUSE / SLES Releases
openSUSE Product | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| curl |
| ||||||||||||||||||
| libcurl-devel |
| ||||||||||||||||||
| libcurl4 |
| ||||||||||||||||||
| libcurl4-32bit |
|
Red Hat Enterprise Linux Releases
Amazon Linux Releases
Amazon Package | |||
|---|---|---|---|
| curl |
| ||
| curl-debuginfo |
| ||
| curl-debugsource |
| ||
| curl-minimal |
| ||
| curl-minimal-debuginfo |
| ||
| libcurl |
| ||
| libcurl-debuginfo |
| ||
| libcurl-devel |
| ||
| libcurl-minimal |
| ||
| libcurl-minimal-debuginfo |
|
Azure Linux Releases