incomplete mTLS config matching in conn reuse
Summary
| CVE | CVE-2026-8932 |
|---|---|
| State | PUBLISHED |
| Assigner | curl |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-03 07:16:25 UTC |
| Updated | 2026-07-07 23:18:32 UTC |
| Description | libcurl would reuse a previously created connection even when some mTLS config related option had been changed that should have prohibited reuse. libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, some TLS settings related to client certificates were left out from the configuration match checks, making them match too easily. In particular options related to the private key. |
Risk And Classification
Primary CVSS: v3.1 7.5 HIGH from ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS: 0.003680000 probability, percentile 0.288260000 (date 2026-07-09)
Problem Types: NVD-CWE-Other | CWE-305 Authentication Bypass by Primary Weakness
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | ADP | DECLARED | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
HighAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Curl | Curl | affected 8.20.0 8.20.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.19.0 8.19.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.18.0 8.18.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.17.0 8.17.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.16.0 8.16.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.15.0 8.15.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.14.1 8.14.1 semver | Not specified |
| CNA | Curl | Curl | affected 8.14.0 8.14.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.13.0 8.13.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.12.1 8.12.1 semver | Not specified |
| CNA | Curl | Curl | affected 8.12.0 8.12.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.11.1 8.11.1 semver | Not specified |
| CNA | Curl | Curl | affected 8.11.0 8.11.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.10.1 8.10.1 semver | Not specified |
| CNA | Curl | Curl | affected 8.10.0 8.10.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.9.1 8.9.1 semver | Not specified |
| CNA | Curl | Curl | affected 8.9.0 8.9.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.8.0 8.8.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.7.1 8.7.1 semver | Not specified |
| CNA | Curl | Curl | affected 8.7.0 8.7.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.6.0 8.6.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.5.0 8.5.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.4.0 8.4.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.3.0 8.3.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.2.1 8.2.1 semver | Not specified |
| CNA | Curl | Curl | affected 8.2.0 8.2.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.1.2 8.1.2 semver | Not specified |
| CNA | Curl | Curl | affected 8.1.1 8.1.1 semver | Not specified |
| CNA | Curl | Curl | affected 8.1.0 8.1.0 semver | Not specified |
| CNA | Curl | Curl | affected 8.0.1 8.0.1 semver | Not specified |
| CNA | Curl | Curl | affected 8.0.0 8.0.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.88.1 7.88.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.88.0 7.88.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.87.0 7.87.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.86.0 7.86.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.85.0 7.85.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.84.0 7.84.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.83.1 7.83.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.83.0 7.83.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.82.0 7.82.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.81.0 7.81.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.80.0 7.80.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.79.1 7.79.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.79.0 7.79.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.78.0 7.78.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.77.0 7.77.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.76.1 7.76.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.76.0 7.76.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.75.0 7.75.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.74.0 7.74.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.73.0 7.73.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.72.0 7.72.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.71.1 7.71.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.71.0 7.71.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.70.0 7.70.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.69.1 7.69.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.69.0 7.69.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.68.0 7.68.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.67.0 7.67.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.66.0 7.66.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.65.3 7.65.3 semver | Not specified |
| CNA | Curl | Curl | affected 7.65.2 7.65.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.65.1 7.65.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.65.0 7.65.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.64.1 7.64.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.64.0 7.64.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.63.0 7.63.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.62.0 7.62.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.61.1 7.61.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.61.0 7.61.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.60.0 7.60.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.59.0 7.59.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.58.0 7.58.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.57.0 7.57.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.56.1 7.56.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.56.0 7.56.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.55.1 7.55.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.55.0 7.55.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.54.1 7.54.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.54.0 7.54.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.53.1 7.53.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.53.0 7.53.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.52.1 7.52.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.52.0 7.52.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.51.0 7.51.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.50.3 7.50.3 semver | Not specified |
| CNA | Curl | Curl | affected 7.50.2 7.50.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.50.1 7.50.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.50.0 7.50.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.49.1 7.49.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.49.0 7.49.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.48.0 7.48.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.47.1 7.47.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.47.0 7.47.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.46.0 7.46.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.45.0 7.45.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.44.0 7.44.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.43.0 7.43.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.42.1 7.42.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.42.0 7.42.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.41.0 7.41.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.40.0 7.40.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.39.0 7.39.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.38.0 7.38.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.37.1 7.37.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.37.0 7.37.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.36.0 7.36.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.35.0 7.35.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.34.0 7.34.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.33.0 7.33.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.32.0 7.32.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.31.0 7.31.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.30.0 7.30.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.29.0 7.29.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.28.1 7.28.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.28.0 7.28.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.27.0 7.27.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.26.0 7.26.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.25.0 7.25.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.24.0 7.24.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.23.1 7.23.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.23.0 7.23.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.22.0 7.22.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.21.7 7.21.7 semver | Not specified |
| CNA | Curl | Curl | affected 7.21.6 7.21.6 semver | Not specified |
| CNA | Curl | Curl | affected 7.21.5 7.21.5 semver | Not specified |
| CNA | Curl | Curl | affected 7.21.4 7.21.4 semver | Not specified |
| CNA | Curl | Curl | affected 7.21.3 7.21.3 semver | Not specified |
| CNA | Curl | Curl | affected 7.21.2 7.21.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.21.1 7.21.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.21.0 7.21.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.20.1 7.20.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.20.0 7.20.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.19.7 7.19.7 semver | Not specified |
| CNA | Curl | Curl | affected 7.19.6 7.19.6 semver | Not specified |
| CNA | Curl | Curl | affected 7.19.5 7.19.5 semver | Not specified |
| CNA | Curl | Curl | affected 7.19.4 7.19.4 semver | Not specified |
| CNA | Curl | Curl | affected 7.19.3 7.19.3 semver | Not specified |
| CNA | Curl | Curl | affected 7.19.2 7.19.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.19.1 7.19.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.19.0 7.19.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.18.2 7.18.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.18.1 7.18.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.18.0 7.18.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.17.1 7.17.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.17.0 7.17.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.16.4 7.16.4 semver | Not specified |
| CNA | Curl | Curl | affected 7.16.3 7.16.3 semver | Not specified |
| CNA | Curl | Curl | affected 7.16.2 7.16.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.16.1 7.16.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.16.0 7.16.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.15.5 7.15.5 semver | Not specified |
| CNA | Curl | Curl | affected 7.15.4 7.15.4 semver | Not specified |
| CNA | Curl | Curl | affected 7.15.3 7.15.3 semver | Not specified |
| CNA | Curl | Curl | affected 7.15.2 7.15.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.15.1 7.15.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.15.0 7.15.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.14.1 7.14.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.14.0 7.14.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.13.2 7.13.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.13.1 7.13.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.13.0 7.13.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.12.3 7.12.3 semver | Not specified |
| CNA | Curl | Curl | affected 7.12.2 7.12.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.12.1 7.12.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.12.0 7.12.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.11.2 7.11.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.11.1 7.11.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.11.0 7.11.0 semver | Not specified |
| CNA | Curl | Curl | affected 7.10.8 7.10.8 semver | Not specified |
| CNA | Curl | Curl | affected 7.10.7 7.10.7 semver | Not specified |
| CNA | Curl | Curl | affected 7.10.6 7.10.6 semver | Not specified |
| CNA | Curl | Curl | affected 7.10.5 7.10.5 semver | Not specified |
| CNA | Curl | Curl | affected 7.10.4 7.10.4 semver | Not specified |
| CNA | Curl | Curl | affected 7.10.3 7.10.3 semver | Not specified |
| CNA | Curl | Curl | affected 7.10.2 7.10.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.10.1 7.10.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.10 7.10 semver | Not specified |
| CNA | Curl | Curl | affected 7.9.8 7.9.8 semver | Not specified |
| CNA | Curl | Curl | affected 7.9.7 7.9.7 semver | Not specified |
| CNA | Curl | Curl | affected 7.9.6 7.9.6 semver | Not specified |
| CNA | Curl | Curl | affected 7.9.5 7.9.5 semver | Not specified |
| CNA | Curl | Curl | affected 7.9.4 7.9.4 semver | Not specified |
| CNA | Curl | Curl | affected 7.9.3 7.9.3 semver | Not specified |
| CNA | Curl | Curl | affected 7.9.2 7.9.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.9.1 7.9.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.9 7.9 semver | Not specified |
| CNA | Curl | Curl | affected 7.8.1 7.8.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.8 7.8 semver | Not specified |
| CNA | Curl | Curl | affected 7.7.3 7.7.3 semver | Not specified |
| CNA | Curl | Curl | affected 7.7.2 7.7.2 semver | Not specified |
| CNA | Curl | Curl | affected 7.7.1 7.7.1 semver | Not specified |
| CNA | Curl | Curl | affected 7.7 7.7 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| curl.se/docs/CVE-2026-8932.html | 2499f714-1537-4658-8207-48ae4bb9eae9 | curl.se | Patch, Vendor Advisory |
| curl.se/docs/CVE-2026-8932.json | 2499f714-1537-4658-8207-48ae4bb9eae9 | curl.se | Vendor Advisory |
| hackerone.com/reports/3733910 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | hackerone.com | Exploit, Issue Tracking, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Joshua Rogers (Aisle Research) (en)
CNA: Joshua Rogers (Aisle Research) (en)
There are currently no legacy QID mappings associated with this CVE.