CVE-2026-19931
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Negotiate ambient user conn reuse
A flaw in libcurl makes it wrongly reuse an HTTP connection setup for a given hostname using Negotiate authentication, when the initial request is done using empty credentials. This can make user B's request get sent over user A's previously authenticated connection.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
curl
- Vendor
- curl
- Product
- curl
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7.64.1 | affected | semver | 8.14.2 | Unavailable | None listed |
| 8.15.0 | affected | semver | 8.16.1 | Unavailable | None listed |
| 8.17.0 | affected | semver | 8.20.1 | Unavailable | None listed |
| 8.21.0 | affected | semver | 8.22.0 | Unavailable | None listed |
curl
- Vendor
- curl
- Product
- curl
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6c6035532383e300c712e4c1cd9fdd749ed5cf59 | affected | git | 7103a93b05bc69ea98ed9d05d02fa9eeba533f2f | Unavailable | None listed |
curl
- Vendor
- curl
- Product
- curl
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8.21.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.20.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.19.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.18.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.17.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.16.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.15.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.14.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.14.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.13.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.12.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.12.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.11.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.11.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.10.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.10.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.9.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.9.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.8.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.7.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.7.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.6.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.5.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.4.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.3.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.2.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.1.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.1.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.1.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.0.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 8.0.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.88.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.88.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.87.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.86.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.85.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.84.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.83.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.83.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.82.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.81.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.80.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.79.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.79.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.78.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.77.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.76.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.76.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.75.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.74.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.73.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.72.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.71.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.71.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.70.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.69.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.69.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.68.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.67.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.66.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.65.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.65.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.65.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.65.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.64.1 | affected | Unavailable | Unavailable | Unavailable | None listed |