CVE-2026-82208

7.5 highEPSS 0.4%

High (7.5) in haxx curl. EPSS 0.4% chance of exploitation in the next 30 days.

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

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-31)
CWE: CWE-295
Published: 2026-09-06
Modified: 2026-09-15
Record from: the NVD, synced 2026-10-19

Affected

haxx:curl

References

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

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