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.
History

Tue, 22 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Fri, 11 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Haxx
Haxx curl
CPEs cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
Vendors & Products Haxx
Haxx curl

Thu, 10 Sep 2026 05:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-296

Tue, 08 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-295
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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

cve-icon MITRE

Status: PUBLISHED

Assigner: curl

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

Updated: 2026-09-15T06:03:14.795Z

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

Link: CVE-2026-82208

cve-icon Vulnrichment

Updated: 2026-09-08T18:44:00.853Z

cve-icon NVD

Status : Modified

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

Modified: 2026-09-15T07:16:31.050

Link: CVE-2026-82208

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-06T17:49:16Z

Links: CVE-2026-82208 - Bugzilla