Vulnerability details
CVE-2026-80231
curl curl
native CA store conn reuse
CVSS 3.1
7.5High
Official description
A flaw in libcurl makes it wrongly reuse an existing HTTPS connection setup for a given hostname even when using a different Native CA Store setting (`CURLSSLOPT_NATIVE_CA`) than when the connection was created.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| curl | curl | 7.71.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.71.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.72.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.73.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.74.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.75.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.76.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.76.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.77.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.78.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.79.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.79.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.80.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.81.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.82.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.83.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.83.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.84.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.85.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.86.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.87.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.88.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.88.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.0.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.0.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.1.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.1.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.1.2 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.10.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.10.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.11.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.11.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.12.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.12.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.13.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.14.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.14.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.15.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.16.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.17.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.18.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.19.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.2.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.2.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.20.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.21.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.3.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.4.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.5.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.6.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.7.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.7.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.8.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.9.0 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.9.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 148534db57dda611cf8516e92e4d6e35fc1e5074 ≤ v < 7be1e70cb6bcd83e130ecfe8cb91b6a7dcdeff42 | CVEProject cvelistV5 (CNA) |
| curl | curl | 7.71.0 ≤ v < 8.14.2 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.15.0 ≤ v < 8.16.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.17.0 ≤ v < 8.20.1 | CVEProject cvelistV5 (CNA) |
| curl | curl | 8.21.0 ≤ v < 8.22.0 | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-09-06
- Last updated
- 2026-09-15
- State
- Published
- Assigner (CNA)
- curl
Exploit prediction (EPSS)
0.89%
Probability of exploitation in 30 days
59.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-488Exposure of Data Element to Wrong Session