CVE-2026-82208 - Vulnerability Details - OpenCVE

With the wolfSSL backend, when CA caching is enabled and an
`CURLOPT_SSL_CTX_FUNCTION` callback replaces the trust store, libcurl can
silently reinstall the cached store after the callback returns. A certificate
trusted by the cached store but rejected by the callback-selected store is
then incorrectly accepted.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00134.

Key SSVC decision points have not yet been added.

Vendors	Products
Curl Subscribe	Curl Subscribe

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products
Curl Subscribe	Curl Subscribe

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://curl.se/docs/CVE-2026-82208.html
https://curl.se/docs/CVE-2026-82208.json
https://hackerone.com/reports/3973090

History

Sun, 06 Sep 2026 20:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-296

Sun, 06 Sep 2026 19:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Curl Curl curl
Vendors & Products		Curl Curl curl

Sun, 06 Sep 2026 18:00:00 +0000

Type	Values Removed	Values Added
Description		With the wolfSSL backend, when CA caching is enabled and an `CURLOPT_SSL_CTX_FUNCTION` callback replaces the trust store, libcurl can silently reinstall the cached store after the callback returns. A certificate trusted by the cached store but rejected by the callback-selected store is then incorrectly accepted.
Title		wolfSSL CA-cache hit overrides callback
References		https://curl.se/docs/CVE-2026-82208.html https://curl.se/docs/CVE-2026-82208.json https://hackerone.com/reports/3973090

Projects

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MITRE

Status: PUBLISHED

Assigner: curl

Published: 2026-09-06T17:49:16.014Z

Updated: 2026-09-06T17:49:16.014Z

Reserved: 2026-08-28T08:25:31.400Z

Link: CVE-2026-82208

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-09-06T18:17:22.733

Modified: 2026-09-06T18:17:22.733

Link: CVE-2026-82208

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-09-06T20:00:06Z

Weaknesses

CWE-296

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