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6.5Medium

CVE-2026-8458wrong reuse for different services

curl curl Published: (4 months ago)

Description

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services". libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the code, a request that was issued by an application could wrongfully reuse an existing connection to the same server that was authenticated using different services.

Weakness (CWE): CWE-488

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
curl curl 7.43.0 – < 8.14.2, 8.15.0 – < 8.16.1, 8.17.0 – < 8.20.1
haxx curl 7.46.0 – < 8.20.0

References and patches

CPE matches (NVD) (1)
  • cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* ≥ 7.46.0 < 8.20.0

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