| Name | CVE-2026-82208 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| curl (PTS) | bookworm | 7.88.1-10+deb12u15 | fixed |
| bookworm (security) | 7.88.1-10+deb12u5 | fixed | |
| trixie | 8.14.1-2+deb13u4 | vulnerable | |
| forky | 8.21.0-2 | vulnerable | |
| sid | 8.22.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| curl | source | bookworm | (not affected) | |||
| curl | source | (unstable) | 8.22.0-1 | unimportant |
[bookworm] - curl <not-affected> (Vulnerable code introduced later)
https://curl.se/docs/CVE-2026-82208.html
Introduced with: https://github.com/curl/curl/commit/0f2876b2c33f6784a27b6f7345bd8cd95b46352a (curl-8_9_1)
Fixed by: https://github.com/curl/curl/commit/ed0338befd1d865a8ea1fbaa90013a096dedd07a (curl-8_22_0)
curl in Debian not built with wolfSSL support