CVE-2026-86409
EUVD-2026-10527420.10.2026, 20:17
Setting `CURLOPT_AWS_SIGV4` to NULL but does not disable SigV4 authentication, contrary to expectations and documentation. A subsequent transfer on the same handle still sends an `Authorization: AWS4-HMAC-SHA256` header to whatever URL isset next, leaking state information.Enginsight
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| curl | curl | 𝑥 ≤ 8.21.0 | CNA |
| curl | curl | 𝑥 ≤ 8.20.0 | CNA |
| 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 |
Debian Releases
Ubuntu Releases
Vulnerability Media Exposure