All vulnerabilities

Servers and applications

CVE-2026-82208

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.

Severity
High 7.5
Published
6 Sept 2026
Last changed
15 Sept 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.22.0
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:curl
  • From 8.9.1 before 8.22.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-82208
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-82208